|
| year | consumption | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | .35 | NA |
| 1987 | .02 | -92.93 % |
| 1988 | .18 | 636.08 % |
| 1989 | .22 | 20.33 % |
| 1990 | .22 | 0.00 % |
| 1991 | .22 | 0.00 % |
| 1992 | .22 | -0.27 % |
| 1993 | .22 | 0.27 % |
| 1994 | .24 | 8.34 % |
| 1995 | .24 | 0.00 % |
| 1996 | .24 | -0.27 % |
| 1997 | .24 | 0.27 % |
| 1998 | .26 | 7.69 % |
| 1999 | .26 | 0.00 % |
| 2000 | .22 | -14.52 % |
| 2001 | .22 | 0.27 % |
| 2002 | .04 | -83.33 % |
| 2003 | .46 | 1,150.10 % |
| 2004 | .24 | -48.14 % |
| 2005 | 1.04 | 339.66 % |
| 2006 | .99 | -5.26 % |
| 2007 | 1.00 | 1.85 % |
| 2008 | 1.06 | 5.45 % |
| 2009 | .89 | -15.52 % |
| 2010 | .82 | -8.16 % |
|
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