|
| year | consumption | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | .62 | NA |
| 1987 | .64 | 2.28 % |
| 1988 | .46 | -26.87 % |
| 1989 | .51 | 9.39 % |
| 1990 | .53 | 4.17 % |
| 1991 | .47 | -12.00 % |
| 1992 | .21 | -54.67 % |
| 1993 | .17 | -19.78 % |
| 1994 | .13 | -25.00 % |
| 1995 | .11 | -16.66 % |
| 1996 | .08 | -20.22 % |
| 1997 | .06 | -24.80 % |
| 1998 | .06 | 0.00 % |
| 1999 | .06 | 0.00 % |
| 2000 | .04 | -33.51 % |
| 2001 | .04 | 0.28 % |
| 2002 | .04 | 0.00 % |
| 2003 | .02 | -50.00 % |
| 2004 | .04 | 99.43 % |
| 2005 | .04 | 0.28 % |
| 2006 | .04 | 0.00 % |
| 2007 | .04 | 0.00 % |
| 2008 | .04 | 0.00 % |
| 2009 | 1.97 | 4,549.58 % |
| 2010 | 1.97 | 0.00 % |
|
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