|
| year | consumption | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | .13 | NA |
| 1987 | .10 | -25.00 % |
| 1988 | .10 | -0.27 % |
| 1989 | .10 | 0.27 % |
| 1990 | .10 | 0.00 % |
| 1991 | .10 | 0.00 % |
| 1992 | .10 | -0.27 % |
| 1993 | .10 | 0.27 % |
| 1994 | .10 | 0.00 % |
| 1995 | .10 | 1.53 % |
| 1996 | .10 | -0.27 % |
| 1997 | .10 | 0.33 % |
| 1998 | .10 | -0.12 % |
| 1999 | .10 | 0.01 % |
| 2000 | .13 | 32.52 % |
| 2001 | .13 | 0.27 % |
| 2002 | .31 | 143.98 % |
| 2003 | .38 | 20.00 % |
| 2004 | .13 | -65.96 % |
| 2005 | .13 | 0.32 % |
| 2006 | 1.00 | 681.51 % |
| 2007 | .64 | -36.72 % |
| 2008 | .86 | 35.00 % |
| 2009 | .94 | 10.13 % |
| 2010 | .94 | 0.00 % |
|
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