|
| year | consumption | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | | NA |
| 1987 | | NA |
| 1988 | | NA |
| 1989 | .19 | NA |
| 1990 | .04 | -77.46 % |
| 1991 | .07 | 71.85 % |
| 1992 | .07 | -2.91 % |
| 1993 | .10 | 44.57 % |
| 1994 | .38 | 267.86 % |
| 1995 | .41 | 8.34 % |
| 1996 | .38 | -7.95 % |
| 1997 | .48 | 25.34 % |
| 1998 | .51 | 6.67 % |
| 1999 | .51 | 0.00 % |
| 2000 | .82 | 61.58 % |
| 2001 | .82 | 0.27 % |
| 2002 | .82 | 0.00 % |
| 2003 | .92 | 11.57 % |
| 2004 | .95 | 3.17 % |
| 2005 | .98 | 3.53 % |
| 2006 | .99 | 1.00 % |
| 2007 | .70 | -29.49 % |
| 2008 | .30 | -57.73 % |
| 2009 | .30 | 0.04 % |
| 2010 | .30 | 0.00 % |
|
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