|
| year | consumption | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | .35 | NA |
| 1987 | .35 | 0.00 % |
| 1988 | .47 | 32.97 % |
| 1989 | .47 | 0.27 % |
| 1990 | .47 | 0.00 % |
| 1991 | .47 | 0.00 % |
| 1992 | .49 | 4.71 % |
| 1993 | .47 | -4.50 % |
| 1994 | .56 | 20.00 % |
| 1995 | .56 | 0.00 % |
| 1996 | .56 | -0.27 % |
| 1997 | .58 | 4.45 % |
| 1998 | .58 | 0.00 % |
| 1999 | .58 | 0.00 % |
| 2000 | .93 | 59.56 % |
| 2001 | .93 | 0.27 % |
| 2002 | 1.05 | 12.50 % |
| 2003 | 1.12 | 6.67 % |
| 2004 | .96 | -14.82 % |
| 2005 | .98 | 2.72 % |
| 2006 | .89 | -9.52 % |
| 2007 | 1.03 | 15.79 % |
| 2008 | 1.05 | 2.27 % |
| 2009 | 1.08 | 2.22 % |
| 2010 | 1.08 | 0.00 % |
|
|