|
| year | consumption | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | 2.20 | NA |
| 1987 | 4.82 | 119.01 % |
| 1988 | 4.94 | 2.63 % |
| 1989 | 6.50 | 31.55 % |
| 1990 | 4.75 | -26.95 % |
| 1991 | 4.81 | 1.28 % |
| 1992 | | NA |
| 1993 | 5.48 | NA |
| 1994 | 5.17 | -5.67 % |
| 1995 | | NA |
| 1996 | 10.00 | NA |
| 1997 | 12.00 | 20.00 % |
| 1998 | 13.00 | 8.33 % |
| 1999 | .43 | -96.71 % |
| 2000 | 15.61 | 3,544.06 % |
| 2001 | 16.55 | 6.01 % |
| 2002 | 16.78 | 1.39 % |
| 2003 | 18.21 | 8.57 % |
| 2004 | 1.72 | -90.58 % |
| 2005 | 1.80 | 4.80 % |
| 2006 | 18.38 | 921.68 % |
| 2007 | 18.31 | -0.38 % |
| 2008 | 18.31 | 0.00 % |
| 2009 | 1.85 | -89.90 % |
| 2010 | 12.22 | 560.79 % |
|
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