|
| year | consumption | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | .08 | NA |
| 1987 | .08 | 0.00 % |
| 1988 | .11 | 25.13 % |
| 1989 | | NA |
| 1990 | | NA |
| 1991 | .08 | NA |
| 1992 | .08 | -0.27 % |
| 1993 | .08 | 0.27 % |
| 1994 | .08 | 0.00 % |
| 1995 | .08 | 0.00 % |
| 1996 | .08 | -0.27 % |
| 1997 | .08 | 0.27 % |
| 1998 | .64 | 650.02 % |
| 1999 | .64 | 0.00 % |
| 2000 | .63 | -0.27 % |
| 2001 | .72 | 13.64 % |
| 2002 | .72 | 0.00 % |
| 2003 | .59 | -17.65 % |
| 2004 | .78 | 31.78 % |
| 2005 | .72 | -7.86 % |
| 2006 | .59 | -17.65 % |
| 2007 | .61 | 3.57 % |
| 2008 | .34 | -44.83 % |
| 2009 | .47 | 37.50 % |
| 2010 | .47 | 0.00 % |
|
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