|
| year | consumption | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | | NA |
| 1987 | | NA |
| 1988 | | NA |
| 1989 | .16 | NA |
| 1990 | .16 | 0.00 % |
| 1991 | .16 | 0.00 % |
| 1992 | .16 | -0.28 % |
| 1993 | .16 | 0.28 % |
| 1994 | .16 | 0.00 % |
| 1995 | .16 | -0.28 % |
| 1996 | .16 | 0.00 % |
| 1997 | .19 | 20.33 % |
| 1998 | .19 | 0.00 % |
| 1999 | .19 | 0.00 % |
| 2000 | .19 | -0.27 % |
| 2001 | .22 | 16.99 % |
| 2002 | .22 | 0.00 % |
| 2003 | .22 | 0.00 % |
| 2004 | .25 | 13.97 % |
| 2005 | .19 | -24.80 % |
| 2006 | .95 | 400.01 % |
| 2007 | .95 | 0.00 % |
| 2008 | .95 | 0.00 % |
| 2009 | .95 | 0.00 % |
| 2010 | .95 | 0.00 % |
|
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