| Model year | kWh/yr |
|---|---|
| 1990 | 1025.7 |
| 1991 | 959.0 |
| 1992 | 908.0 |
| 1993 | 913.5 |
| 1994 | 776.7 |
| 1995 | 670.9 |
| 1996 | 668.2 |
| 1997 | 649.2 |
| 1998 | 646.7 |
| 1999 | 640.1 |
| 2000 | 637.4 |
| 2001 | 633.7 |
| 2002 | 592.0 |
| 2003 | 523.9 |
| 2004 | 456.8 |
| 2005 | 395.7 |
| 2006 | 372.6 |
| 2007 | 353.8 |
| 2008 | 342.9 |
| 2009 | 324.7 |
| 2010 | 309.6 |
| 2011 | 298.0 |
| 2012 | 278.4 |
| 2013 | 275.2 |
| 2014 | 270.7 |
| 2015 | 268.2 |
| 2016 | 267.3 |
| 2017 | 265.8 |