2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | ||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Total Apartments Water Heater Stock (thousands) | 512.9 | 516.6 | 524.1 | 530.9 | 543.1 | 557.7 | 570.7 | 586.3 | 603.9 | 619.3 | 631.2 | 640.0 | 652.0 | 664.7 | 677.2 | 689.8 | 703.0 | 719.2 | |
Water Heater Stock by Energy Source (thousands) | |||||||||||||||||||
Electricity | 209.2 | 208.2 | 206.1 | 203.2 | 203.2 | 207.1 | 211.3 | 216.5 | 222.6 | 230.0 | 238.0 | 246.9 | 255.2 | 263.6 | 272.1 | 280.7 | 289.6 | 299.9 | |
Natural Gas | 290.1 | 294.3 | 303.2 | 313.4 | 325.8 | 336.7 | 346.0 | 356.4 | 368.8 | 377.6 | 381.9 | 381.9 | 385.8 | 390.4 | 394.6 | 398.7 | 403.0 | 408.8 | |
Heating Oil | 7.0 | 7.7 | 8.1 | 7.9 | 7.8 | 7.5 | 7.2 | 7.2 | 6.6 | 6.0 | 5.8 | 5.5 | 5.1 | 4.6 | 4.1 | 3.7 | 3.4 | 3.0 | |
Steam | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |
Other1 | 2.6 | 2.5 | 2.6 | 2.5 | 2.5 | 2.4 | 2.4 | 2.4 | 2.3 | 2.2 | 2.3 | 2.4 | 2.6 | 2.9 | 3.3 | 3.7 | 4.2 | 4.7 | |
Wood | 4.1 | 3.9 | 4.1 | 3.9 | 3.9 | 3.9 | 3.8 | 3.8 | 3.6 | 3.4 | 3.3 | 3.3 | 3.3 | 3.2 | 3.1 | 3.0 | 2.9 | 2.8 | |
Shares (%) | |||||||||||||||||||
Electricity | 40.8 | 40.3 | 39.3 | 38.3 | 37.4 | 37.1 | 37.0 | 36.9 | 36.9 | 37.1 | 37.7 | 38.6 | 39.1 | 39.7 | 40.2 | 40.7 | 41.2 | 41.7 | |
Natural Gas | 56.6 | 57.0 | 57.8 | 59.0 | 60.0 | 60.4 | 60.6 | 60.8 | 61.1 | 61.0 | 60.5 | 59.7 | 59.2 | 58.7 | 58.3 | 57.8 | 57.3 | 56.8 | |
Heating Oil | 1.4 | 1.5 | 1.5 | 1.5 | 1.4 | 1.3 | 1.3 | 1.2 | 1.1 | 1.0 | 0.9 | 0.9 | 0.8 | 0.7 | 0.6 | 0.5 | 0.5 | 0.4 | |
Steam | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |
Other1 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.5 | 0.5 | 0.6 | 0.7 | |
Wood | 0.8 | 0.8 | 0.8 | 0.7 | 0.7 | 0.7 | 0.7 | 0.7 | 0.6 | 0.6 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.4 | 0.4 | 0.4 | |
Total Mobile Homes Water Heater Stock (thousands) | 59.4 | 59.8 | 60.3 | 60.8 | 61.4 | 62.1 | 62.9 | 63.6 | 64.1 | 64.7 | 65.2 | 65.6 | 66.0 | 66.4 | 66.8 | 67.1 | 67.5 | 68.0 | |
Water Heater Stock by Energy Source (thousands) | |||||||||||||||||||
Electricity | 24.2 | 24.1 | 23.7 | 23.3 | 23.0 | 23.1 | 23.3 | 23.5 | 23.6 | 24.0 | 24.6 | 25.3 | 25.8 | 26.3 | 26.8 | 27.3 | 27.8 | 28.3 | |
Natural Gas | 33.6 | 34.1 | 34.9 | 35.9 | 36.8 | 37.5 | 38.1 | 38.6 | 39.2 | 39.4 | 39.4 | 39.1 | 39.0 | 39.0 | 38.9 | 38.8 | 38.7 | 38.6 | |
Heating Oil | 0.8 | 0.9 | 0.9 | 0.9 | 0.9 | 0.8 | 0.8 | 0.8 | 0.7 | 0.6 | 0.6 | 0.6 | 0.5 | 0.5 | 0.4 | 0.4 | 0.3 | 0.3 | |
Steam | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |
Other1 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.2 | 0.2 | 0.2 | 0.3 | 0.3 | 0.3 | 0.3 | 0.4 | 0.4 | 0.4 | |
Wood | 0.5 | 0.5 | 0.5 | 0.5 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | |
Shares (%) | |||||||||||||||||||
Electricity | 40.8 | 40.3 | 39.3 | 38.3 | 37.4 | 37.1 | 37.0 | 36.9 | 36.9 | 37.1 | 37.7 | 38.6 | 39.1 | 39.7 | 40.2 | 40.7 | 41.2 | 41.7 | |
Natural Gas | 56.6 | 57.0 | 57.8 | 59.0 | 60.0 | 60.4 | 60.6 | 60.8 | 61.1 | 61.0 | 60.5 | 59.7 | 59.2 | 58.7 | 58.3 | 57.8 | 57.3 | 56.8 | |
Heating Oil | 1.4 | 1.5 | 1.5 | 1.5 | 1.4 | 1.3 | 1.3 | 1.2 | 1.1 | 1.0 | 0.9 | 0.9 | 0.8 | 0.7 | 0.6 | 0.5 | 0.5 | 0.4 | |
Steam | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |
Other1 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.5 | 0.5 | 0.6 | 0.7 | |
Wood | 0.8 | 0.8 | 0.8 | 0.7 | 0.7 | 0.7 | 0.7 | 0.7 | 0.6 | 0.6 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.4 | 0.4 | 0.4 |