|
| year | consumption | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | | NA |
| 1987 | | NA |
| 1988 | | NA |
| 1989 | | NA |
| 1990 | | NA |
| 1991 | .00 | NA |
| 1992 | | NA |
| 1993 | .01 | NA |
| 1994 | .01 | 8.25 % |
| 1995 | .01 | 0.00 % |
| 1996 | .01 | -0.32 % |
| 1997 | .01 | 0.32 % |
| 1998 | .01 | 0.00 % |
| 1999 | .01 | 0.00 % |
| 2000 | .02 | 58.86 % |
| 2001 | .02 | 0.00 % |
| 2002 | .02 | 0.00 % |
| 2003 | .02 | 0.00 % |
| 2004 | .02 | 0.00 % |
| 2005 | .02 | 0.00 % |
| 2006 | .09 | 339.70 % |
| 2007 | .09 | 3.74 % |
| 2008 | .09 | 3.34 % |
| 2009 | .09 | -2.65 % |
| 2010 | .09 | 0.00 % |
|
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