|
| year | consumption | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | .02 | NA |
| 1987 | .02 | 0.00 % |
| 1988 | .02 | -0.24 % |
| 1989 | .02 | 0.24 % |
| 1990 | .02 | 0.00 % |
| 1991 | .02 | 0.00 % |
| 1992 | .02 | -0.24 % |
| 1993 | .04 | 100.52 % |
| 1994 | .04 | 0.00 % |
| 1995 | .04 | -2.98 % |
| 1996 | | NA |
| 1997 | .10 | NA |
| 1998 | .06 | -37.10 % |
| 1999 | .06 | 0.00 % |
| 2000 | | NA |
| 2001 | | NA |
| 2002 | .04 | NA |
| 2003 | .11 | 149.98 % |
| 2004 | .11 | -0.27 % |
| 2005 | .13 | 20.33 % |
| 2006 | .12 | -3.97 % |
| 2007 | .11 | -13.23 % |
| 2008 | .12 | 15.20 % |
| 2009 | .01 | -89.37 % |
| 2010 | .01 | -2.00 % |
|
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