|
| year | consumption | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | .14 | NA |
| 1987 | .19 | 37.28 % |
| 1988 | .19 | -0.22 % |
| 1989 | .16 | -16.35 % |
| 1990 | .03 | -80.45 % |
| 1991 | .20 | 546.45 % |
| 1992 | .00 | -99.45 % |
| 1993 | .00 | 0.00 % |
| 1994 | .00 | 0.00 % |
| 1995 | .00 | 0.00 % |
| 1996 | 1.59 | 142,765.80 % |
| 1997 | 3.97 | 150.58 % |
| 1998 | 6.20 | 55.98 % |
| 1999 | 6.90 | 11.26 % |
| 2000 | 10.59 | 53.50 % |
| 2001 | 11.28 | 6.59 % |
| 2002 | 3.15 | -72.12 % |
| 2003 | 14.70 | 367.22 % |
| 2004 | 9.32 | -36.61 % |
| 2005 | 12.01 | 28.92 % |
| 2006 | 23.52 | 95.77 % |
| 2007 | 28.51 | 21.22 % |
| 2008 | 27.78 | -2.56 % |
| 2009 | 28.33 | 2.00 % |
| 2010 | 32.75 | 15.59 % |
|
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