‹ BACK TO ALL 2015 RECS TABLES
Release date: February 2017
Revised date: May 2018
Number of housing units (million) | ||||||
Housing unit type | ||||||
Total U.S.2 | Single-family detached | Single-family attached | Apartment (2- to 4-unit building) |
Apartment (5 or more unit building) |
Mobile home | |
All homes | 118.2 | 73.9 | 7.0 | 9.4 | 21.1 | 6.8 |
Stoves (units with both an oven and a cooktop) | ||||||
Have a stove | 108.0 | 65.1 | 6.7 | 9.3 | 20.5 | 6.4 |
1 | 105.8 | 63.4 | 6.6 | 9.0 | 20.5 | 6.3 |
2 or more | 2.2 | 1.7 | Q | Q | N | Q |
Do not have a stove | 10.2 | 8.8 | 0.3 | Q | 0.6 | 0.4 |
Most-used stove fuel | ||||||
Electricity | 66.4 | 38.8 | 3.7 | 5.6 | 14.4 | 3.8 |
Natural gas | 35.2 | 21.8 | 2.9 | 3.4 | 5.8 | 1.3 |
Propane | 5.5 | 3.9 | Q | Q | Q | 1.2 |
Dual fuel | 0.9 | 0.6 | Q | Q | Q | Q |
Do not have a stove | 10.2 | 8.8 | 0.3 | Q | 0.6 | 0.4 |
Most-used stove usage: cooktop part | ||||||
0 times per week | 3.4 | 1.5 | 0.1 | Q | 1.3 | 0.3 |
1 to 3 times per week | 16.9 | 9.0 | 1.2 | 1.5 | 4.1 | 1.2 |
4 to 7 times per week | 50.5 | 30.5 | 3.1 | 4.6 | 9.4 | 2.9 |
8 to 14 times per week | 23.9 | 16.0 | 1.2 | 1.8 | 3.6 | 1.3 |
15 or more times per week | 13.3 | 8.0 | 1.1 | 1.2 | 2.2 | 0.7 |
Do not have a stove | 10.2 | 8.8 | 0.3 | Q | 0.6 | 0.4 |
Most-used stove usage: oven part | ||||||
0 times per week | 18.4 | 9.1 | 1.2 | 1.8 | 4.8 | 1.4 |
1 to 3 times per week | 56.7 | 34.6 | 3.6 | 5.3 | 10.5 | 2.8 |
4 to 7 times per week | 28.1 | 18.6 | 1.6 | 1.8 | 4.3 | 1.8 |
8 to 14 times per week | 3.6 | 2.2 | 0.3 | Q | 0.8 | 0.3 |
15 or more times per week | 1.1 | 0.6 | Q | Q | Q | Q |
Do not have a stove | 10.2 | 8.8 | 0.3 | Q | 0.6 | 0.4 |
Separate cooktops | ||||||
Have a separate cooktop | 17.1 | 13.5 | 0.8 | 0.4 | 1.8 | 0.6 |
1 | 16.7 | 13.2 | 0.8 | 0.4 | 1.8 | 0.6 |
2 or more | 0.3 | 0.3 | Q | N | N | Q |
Do not have a separate cooktop | 101.1 | 60.4 | 6.2 | 9.0 | 19.4 | 6.2 |
Most-used separate cooktop fuel | ||||||
Electricity | 9.6 | 7.4 | 0.3 | 0.3 | 1.2 | 0.3 |
Natural gas | 6.4 | 5.1 | 0.5 | Q | 0.5 | Q |
Propane | 1.1 | 1.0 | Q | N | N | Q |
Do not have a separate cooktop | 101.1 | 60.4 | 6.2 | 9.0 | 19.4 | 6.2 |
Most-used separate cooktop usage | ||||||
0 times per week | 2.1 | 1.2 | Q | Q | 0.5 | Q |
1 to 3 times per week | 3.0 | 2.2 | 0.1 | Q | 0.5 | Q |
4 to 7 times per week | 6.7 | 5.6 | 0.3 | Q | 0.5 | Q |
8 to 14 times per week | 3.4 | 2.9 | Q | Q | 0.2 | Q |
15 or more times per week | 1.9 | 1.6 | Q | Q | Q | Q |
Do not have a separate cooktop | 101.1 | 60.4 | 6.2 | 9.0 | 19.4 | 6.2 |
Separate wall ovens | ||||||
Have a separate wall oven | 13.9 | 12.4 | 0.5 | Q | 0.6 | 0.3 |
1 | 9.9 | 8.5 | 0.4 | Q | 0.6 | 0.3 |
2 or more | 4.0 | 3.9 | Q | Q | N | N |
Do not have a separate wall oven | 104.4 | 61.5 | 6.5 | 9.3 | 20.5 | 6.5 |
Most-used separate wall oven fuel | ||||||
Electricity | 11.9 | 10.8 | 0.4 | Q | 0.5 | Q |
Natural gas | 1.8 | 1.4 | Q | N | Q | Q |
Propane | Q | Q | N | N | N | N |
Do not have a separate wall oven | 104.4 | 61.5 | 6.5 | 9.3 | 20.5 | 6.5 |
Most-used separate wall oven usage | ||||||
0 times per week | 2.0 | 1.6 | Q | Q | Q | Q |
1 to 3 times per week | 6.1 | 5.6 | 0.2 | Q | Q | Q |
4 to 7 times per week | 4.6 | 4.2 | 0.2 | Q | Q | Q |
8 to 14 times per week | 0.8 | 0.8 | N | N | Q | N |
15 or more times per week | 0.3 | 0.3 | Q | N | N | N |
Do not have a separate wall oven | 104.4 | 61.5 | 6.5 | 9.3 | 20.5 | 6.5 |
Frequency of hot meals cooked | ||||||
No hot meals cooked | 0.9 | 0.4 | Q | Q | 0.3 | Q |
Less than once a week | 2.4 | 1.5 | 0.2 | Q | 0.6 | Q |
About once a week | 2.6 | 1.3 | 0.2 | Q | 0.7 | Q |
A few times each week | 19.9 | 11.5 | 1.1 | 1.6 | 4.5 | 1.1 |
Once a day | 36.1 | 24.1 | 1.9 | 2.2 | 6.2 | 1.7 |
2 times a day | 38.1 | 24.6 | 2.1 | 3.4 | 5.7 | 2.3 |
3 or more times a day | 18.2 | 10.4 | 1.4 | 1.8 | 3.2 | 1.3 |
Microwave ovens | ||||||
Have a microwave oven | 113.6 | 72.4 | 6.7 | 8.7 | 19.1 | 6.6 |
1 | 108.9 | 68.5 | 6.4 | 8.5 | 19.0 | 6.4 |
2 or more | 4.7 | 3.9 | 0.3 | Q | Q | Q |
Do not have a microwave oven | 4.6 | 1.5 | 0.3 | 0.7 | 2.0 | Q |
Microwave oven usage | ||||||
0 times per week | 1.6 | 0.8 | Q | Q | 0.6 | Q |
1 to 3 times per week | 10.6 | 5.4 | 0.6 | 0.9 | 2.9 | 0.7 |
4 to 7 times per week | 39.0 | 23.4 | 2.4 | 3.3 | 7.7 | 2.1 |
8 to 14 times per week | 27.9 | 18.6 | 1.8 | 2.3 | 3.6 | 1.5 |
15 or more times per week | 34.5 | 24.2 | 1.7 | 2.1 | 4.3 | 2.1 |
Do not have a microwave oven | 4.6 | 1.5 | 0.3 | 0.7 | 2.0 | Q |
Outdoor grills and fuel | ||||||
Use an outdoor grill | 69.3 | 55.5 | 3.8 | 3.0 | 3.0 | 4.1 |
Natural gas | 4.1 | 3.6 | 0.3 | Q | Q | Q |
Propane | 42.2 | 35.3 | 2.2 | 1.3 | 1.4 | 2.1 |
Charcoal | 22.3 | 16.0 | 1.3 | 1.5 | 1.5 | 1.9 |
Some other fuel | 0.7 | 0.6 | Q | N | Q | Q |
Do not use an outdoor grill | 48.9 | 18.4 | 3.2 | 6.4 | 18.2 | 2.7 |
Small kitchen appliances used at least once each week (more than one may apply) | ||||||
Toaster | 74.0 | 49.2 | 4.3 | 5.4 | 11.0 | 4.1 |
Toaster oven | 28.7 | 19.2 | 2.1 | 1.5 | 4.3 | 1.7 |
Coffee maker | 75.9 | 52.0 | 4.3 | 4.3 | 10.8 | 4.5 |
Slow cooker | 33.3 | 22.6 | 2.0 | 2.4 | 3.9 | 2.4 |
Food processor | 12.1 | 7.8 | 0.6 | 1.2 | 1.9 | 0.7 |
Rice cooker | 14.3 | 8.5 | 1.1 | 1.6 | 2.7 | 0.5 |
Blender or juicer | 30.8 | 18.7 | 2.1 | 3.2 | 5.4 | 1.4 |
Some other small kitchen appliance3 | 12.3 | 8.2 | 0.6 | 0.9 | 1.7 | 0.9 |
Refrigerators | ||||||
Use a refrigerator | 117.4 | 73.6 | 6.9 | 9.3 | 20.9 | 6.7 |
1 | 82.3 | 43.3 | 5.3 | 8.2 | 20.0 | 5.4 |
2 or more | 35.1 | 30.3 | 1.6 | 1.1 | 0.8 | 1.2 |
Do not use a refrigerator | 0.9 | 0.3 | Q | Q | Q | Q |
Most-used refrigerator size | ||||||
Half-size or compact | 0.9 | 0.3 | Q | Q | 0.4 | Q |
Small (less than 17.6 cubic feet) | 6.8 | 2.3 | 0.4 | 0.9 | 2.5 | 0.7 |
Medium (17.6 to 22.5 cubic feet) | 59.1 | 32.5 | 3.9 | 5.8 | 12.9 | 4.0 |
Large (22.6 to 29.5 cubic feet) | 48.7 | 36.9 | 2.5 | 2.5 | 4.9 | 1.9 |
Very large (more than 29.5 cubic feet) | 1.9 | 1.6 | Q | Q | Q | Q |
Do not use a refrigerator | 0.9 | 0.3 | Q | Q | Q | Q |
Most-used refrigerator type | ||||||
Half-size/compact | 0.9 | 0.3 | Q | Q | 0.4 | Q |
One door | 9.8 | 4.8 | 0.6 | 1.2 | 2.4 | 0.8 |
Two doors, top freezer | 51.4 | 22.5 | 3.3 | 6.6 | 15.5 | 3.6 |
Two doors, bottom freezer | 15.5 | 13.0 | 0.7 | 0.4 | 0.8 | 0.5 |
Two doors, side by side | 36.8 | 30.3 | 2.1 | 1.1 | 1.7 | 1.7 |
Three or more doors | 2.9 | 2.7 | 0.2 | N | Q | Q |
Do not use a refrigerator | 0.9 | 0.3 | Q | Q | Q | Q |
Most-used refrigerator age | ||||||
Less than 2 years old | 15.9 | 9.9 | 0.9 | 1.4 | 2.9 | 0.8 |
2 to 4 years old | 26.2 | 15.7 | 1.5 | 2.4 | 5.4 | 1.3 |
5 to 9 years old | 41.1 | 24.5 | 2.7 | 3.4 | 7.6 | 2.9 |
10 to 14 years old | 21.9 | 14.6 | 1.2 | 1.5 | 3.7 | 0.9 |
15 to 19 years old | 7.5 | 5.5 | 0.5 | 0.3 | 0.8 | 0.4 |
20 or more years old | 4.7 | 3.4 | 0.2 | 0.3 | 0.5 | 0.3 |
Do not use a refrigerator | 0.9 | 0.3 | Q | Q | Q | Q |
Most-used refrigerator through-the-door ice service | ||||||
Yes | 41.4 | 35.2 | 2.2 | 0.9 | 1.5 | 1.6 |
No | 76.0 | 38.4 | 4.7 | 8.5 | 19.4 | 5.1 |
Do not use a refrigerator | 0.9 | 0.3 | Q | Q | Q | Q |
Second refrigerator | ||||||
Use a second refrigerator | 35.1 | 30.3 | 1.6 | 1.1 | 0.8 | 1.2 |
Do not use a second refrigerator | 83.2 | 43.6 | 5.5 | 8.3 | 20.3 | 5.5 |
Second refrigerator size | ||||||
Half-size or compact | 8.1 | 6.1 | 0.5 | 0.5 | 0.6 | 0.3 |
Small (less than 17.6 cubic feet) | 5.5 | 4.9 | 0.2 | Q | Q | Q |
Medium (17.6 to 22.5 cubic feet) | 14.5 | 12.8 | 0.7 | 0.4 | Q | 0.5 |
Large (22.6 to 29.5 cubic feet) | 6.8 | 6.3 | 0.2 | Q | N | Q |
Very large (more than 29.5 cubic feet) | 0.2 | Q | Q | N | N | Q |
Do not use a second refrigerator | 83.2 | 43.6 | 5.5 | 8.3 | 20.3 | 5.5 |
Second refrigerator type | ||||||
Half-size or compact | 8.1 | 6.1 | 0.5 | 0.5 | 0.6 | 0.3 |
One door | 5.9 | 4.9 | 0.2 | Q | Q | 0.3 |
Two doors, top freezer | 14.1 | 12.9 | 0.5 | 0.3 | Q | 0.4 |
Two doors, bottom freezer | 1.1 | 1.1 | Q | N | N | Q |
Two doors, side by side | 5.7 | 5.2 | 0.2 | Q | N | 0.3 |
Three or more doors | Q | Q | Q | N | N | N |
Do not use a second refrigerator | 83.2 | 43.6 | 5.5 | 8.3 | 20.3 | 5.5 |
Second refrigerator age | ||||||
Less than 2 years old | 2.7 | 1.9 | 0.2 | Q | Q | Q |
2 to 4 years old | 5.0 | 4.0 | 0.2 | Q | 0.3 | 0.2 |
5 to 9 years old | 9.8 | 8.3 | 0.5 | 0.4 | Q | 0.5 |
10 to 14 years old | 9.2 | 8.3 | 0.3 | Q | Q | 0.3 |
15 to 19 years old | 4.7 | 4.4 | 0.2 | N | Q | Q |
20 or more years old | 3.6 | 3.4 | 0.2 | N | N | Q |
Do not use a second refrigerator | 83.2 | 43.6 | 5.5 | 8.3 | 20.3 | 5.5 |
Second refrigerator location | ||||||
Basement | 6.8 | 6.2 | 0.4 | Q | N | N |
Garage | 16.0 | 15.0 | 0.5 | Q | Q | Q |
Outside | 1.8 | 1.4 | Q | Q | Q | 0.3 |
Main floor of house | 8.8 | 6.4 | 0.5 | 0.5 | 0.7 | 0.6 |
Some other location | 1.7 | 1.2 | 0.2 | Q | Q | Q |
Do not use a second refrigerator | 83.2 | 43.6 | 5.5 | 8.3 | 20.3 | 5.5 |
Separate freezers | ||||||
Use a separate freezer | 38.1 | 31.4 | 1.4 | 1.2 | 1.5 | 2.6 |
1 | 34.2 | 28.0 | 1.3 | 1.2 | 1.5 | 2.2 |
2 or more | 3.9 | 3.4 | Q | Q | N | 0.4 |
Do not use a separate freezer | 80.1 | 42.5 | 5.6 | 8.2 | 19.6 | 4.2 |
Most-used separate freezer size | ||||||
Half-size or compact | 3.3 | 2.4 | 0.2 | Q | Q | 0.5 |
Small (less than 17.6 cubic feet) | 11.8 | 9.4 | 0.4 | 0.4 | 0.6 | 1.1 |
Medium (17.6 to 22.5 cubic feet) | 15.2 | 12.9 | 0.5 | 0.6 | 0.5 | 0.8 |
Large (22.6 to 29.5 cubic feet) | 7.2 | 6.2 | 0.3 | Q | Q | 0.3 |
Very large (more than 29.5 cubic feet) | 0.5 | 0.5 | Q | N | N | Q |
Do not use a separate freezer | 80.1 | 42.5 | 5.6 | 8.2 | 19.6 | 4.2 |
Most-used separate freezer type | ||||||
Upright | 17.8 | 15.0 | 0.7 | 0.5 | 0.6 | 1.1 |
Chest | 20.3 | 16.4 | 0.7 | 0.7 | 1.0 | 1.5 |
Do not use a separate freezer | 80.1 | 42.5 | 5.6 | 8.2 | 19.6 | 4.2 |
Most-used separate freezer age | ||||||
Less than 2 years old | 3.9 | 2.7 | 0.2 | Q | 0.4 | 0.3 |
2 to 4 years old | 6.0 | 4.6 | 0.3 | Q | 0.3 | 0.6 |
5 to 9 years old | 11.1 | 9.2 | 0.4 | 0.4 | 0.2 | 0.9 |
10 to 14 years old | 8.0 | 6.7 | 0.2 | Q | 0.4 | 0.6 |
15 to 19 years old | 4.2 | 3.8 | Q | Q | Q | Q |
20 or more years old | 4.9 | 4.4 | 0.1 | Q | Q | Q |
Do not use a separate freezer | 80.1 | 42.5 | 5.6 | 8.2 | 19.6 | 4.2 |
Dishwashers and usage | ||||||
Have a dishwasher | 79.7 | 54.7 | 5.3 | 3.8 | 13.1 | 2.7 |
Used 0 times per week | 16.0 | 8.8 | 1.1 | 1.4 | 3.9 | 0.8 |
Used 1 time per week | 13.3 | 8.2 | 1.0 | 0.8 | 2.7 | 0.5 |
Used 2 to 3 times per week | 25.7 | 18.3 | 1.9 | 1.0 | 3.8 | 0.7 |
Used 4 to 6 times per week | 15.1 | 11.6 | 0.9 | 0.4 | 1.7 | 0.5 |
Used 7 or more times per week | 9.5 | 7.8 | 0.3 | Q | 0.9 | 0.3 |
Do not have a dishwasher | 38.6 | 19.2 | 1.7 | 5.5 | 8.0 | 4.1 |
Dishwasher age | ||||||
Less than 2 years old | 11.3 | 7.7 | 0.8 | 0.5 | 1.9 | 0.4 |
2 to 4 years old | 16.1 | 10.4 | 1.1 | 1.0 | 3.1 | 0.5 |
5 to 9 years old | 26.9 | 18.5 | 1.7 | 1.3 | 4.5 | 0.9 |
10 to 14 years old | 16.4 | 11.4 | 1.0 | 0.9 | 2.6 | 0.6 |
15 to 19 years old | 5.1 | 4.0 | 0.4 | Q | 0.4 | Q |
20 or more years old | 4.0 | 2.7 | 0.3 | Q | 0.6 | Q |
Do not have a dishwasher | 38.6 | 19.2 | 1.7 | 5.5 | 8.0 | 4.1 |
Most-used dishwasher cycle type | ||||||
Normal or default cycle without heated dry | 14.4 | 11.1 | 0.8 | 0.5 | 1.7 | 0.3 |
Normal or default cycle with heated dry | 36.9 | 25.5 | 2.6 | 1.7 | 5.9 | 1.1 |
Heavy or "pots and pans" cycle | 5.1 | 3.5 | 0.2 | Q | 1.0 | 0.3 |
Light or delicate cycle | 1.8 | 1.3 | 0.2 | Q | Q | Q |
Energy saver | 5.4 | 4.5 | 0.3 | Q | 0.3 | Q |
Do not have or use a dishwasher | 54.5 | 28.0 | 2.9 | 6.9 | 12.0 | 4.8 |
Clothes washers | ||||||
Have a clothes washer at home | 97.4 | 71.7 | 6.4 | 4.6 | 8.5 | 6.2 |
Top-loading | 73.5 | 52.3 | 5.1 | 3.8 | 6.9 | 5.5 |
Front-loading | 23.8 | 19.3 | 1.4 | 0.8 | 1.6 | 0.7 |
Do not have a clothes washer at home | 20.8 | 2.2 | 0.6 | 4.8 | 12.6 | 0.6 |
Clothes washer age | ||||||
Less than 2 years old | 15.1 | 11.2 | 0.9 | 0.5 | 1.6 | 0.9 |
2 to 4 years old | 22.1 | 15.6 | 1.4 | 1.4 | 2.2 | 1.5 |
5 to 9 years old | 34.7 | 25.3 | 2.4 | 1.7 | 3.0 | 2.4 |
10 to 14 years old | 17.1 | 13.1 | 1.1 | 0.8 | 1.0 | 1.0 |
15 to 19 years old | 5.4 | 4.1 | 0.4 | 0.2 | 0.4 | Q |
20 or more years old | 3.0 | 2.3 | 0.2 | Q | Q | Q |
Do not have a clothes washer at home | 20.8 | 2.2 | 0.6 | 4.8 | 12.6 | 0.6 |
Clothes washer usage | ||||||
0 loads per week | 1.2 | 0.7 | Q | Q | 0.3 | Q |
1 to 4 loads per week | 59.8 | 41.6 | 4.7 | 3.5 | 6.2 | 4.0 |
5 to 9 loads per week | 26.9 | 21.6 | 1.2 | 0.7 | 1.6 | 1.7 |
10 to 15 loads per week | 8.0 | 6.6 | 0.4 | Q | 0.4 | 0.5 |
More than 15 loads per week | 1.4 | 1.2 | Q | Q | Q | N |
Do not have a clothes washer at home | 20.8 | 2.2 | 0.6 | 4.8 | 12.6 | 0.6 |
Usual water temperature setting for the wash cycle | ||||||
Hot | 6.6 | 4.2 | 0.5 | 0.7 | 0.8 | 0.5 |
Warm | 47.5 | 35.9 | 3.3 | 1.8 | 4.0 | 2.5 |
Cold | 42.0 | 30.9 | 2.5 | 2.0 | 3.5 | 3.1 |
Do not have or use a clothes washer at home | 22.1 | 2.9 | 0.7 | 4.9 | 12.9 | 0.7 |
Usual water temperature setting for the rinse cycle | ||||||
Hot | 2.3 | 1.4 | 0.2 | Q | 0.4 | Q |
Warm | 23.2 | 16.1 | 1.8 | 1.3 | 2.4 | 1.6 |
Cold | 70.7 | 53.5 | 4.3 | 3.1 | 5.5 | 4.3 |
Do not have or use a clothes washer at home | 22.1 | 2.9 | 0.7 | 4.9 | 12.9 | 0.7 |
Clothes dryer and fuel | ||||||
Have a clothes dryer at home | 94.9 | 70.4 | 6.2 | 4.2 | 8.2 | 5.9 |
Electricity | 75.8 | 54.9 | 4.6 | 3.5 | 7.3 | 5.4 |
Natural gas | 17.9 | 14.3 | 1.6 | 0.7 | 0.9 | 0.4 |
Propane | 1.3 | 1.2 | Q | N | N | Q |
Do not have a clothes dryer at home | 23.3 | 3.5 | 0.8 | 5.2 | 12.9 | 0.9 |
Clothes dryer age | ||||||
Less than 2 years old | 11.7 | 8.4 | 0.7 | 0.5 | 1.4 | 0.6 |
2 to 4 years old | 20.2 | 14.4 | 1.2 | 1.1 | 2.0 | 1.5 |
5 to 9 years old | 33.9 | 24.9 | 2.4 | 1.4 | 2.8 | 2.3 |
10 to 14 years old | 19.0 | 14.7 | 1.2 | 0.8 | 1.2 | 1.1 |
15 to 19 years old | 6.2 | 4.8 | 0.3 | 0.3 | 0.5 | Q |
20 or more years old | 4.0 | 3.1 | 0.3 | Q | Q | 0.2 |
Do not have a clothes dryer at home | 23.3 | 3.5 | 0.8 | 5.2 | 12.9 | 0.9 |
Clothes dryer usage | ||||||
0 loads per week | 2.1 | 1.3 | Q | Q | 0.3 | Q |
1 to 4 loads per week | 56.8 | 39.9 | 4.4 | 2.9 | 5.8 | 3.7 |
5 to 9 loads per week | 26.3 | 21.1 | 1.3 | 0.7 | 1.6 | 1.6 |
10 to 15 loads per week | 8.3 | 6.8 | 0.3 | 0.3 | 0.4 | 0.5 |
More than 15 loads per week | 1.4 | 1.2 | Q | Q | Q | N |
Do not have a clothes dryer at home | 23.3 | 3.5 | 0.8 | 5.2 | 12.9 | 0.9 |
1Housing characteristics data were collected between August 2015 and April 2016. Q = Data withheld because either the Relative Standard Error (RSE) was greater than 50% or fewer than 10 cases responded. Notes: Because of rounding, data may not sum to totals. See RECS Terminology for definition of terms used in these tables. Source: U.S. Energy Information Administration, Office of Energy Consumption and Efficiency Statistics, Forms EIA-457A and EIA-457C of the 2015 Residential Energy Consumption Survey. |