|
| year | consumption | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | .56 | NA |
| 1987 | .58 | 3.94 % |
| 1988 | 1.00 | 72.53 % |
| 1989 | 1.26 | 26.22 % |
| 1990 | .69 | -45.64 % |
| 1991 | 1.10 | 60.10 % |
| 1992 | .73 | -33.77 % |
| 1993 | .34 | -52.82 % |
| 1994 | .35 | 0.46 % |
| 1995 | .75 | 116.36 % |
| 1996 | .62 | -17.05 % |
| 1997 | 1.15 | 84.90 % |
| 1998 | 1.18 | 2.92 % |
| 1999 | 1.26 | 6.64 % |
| 2000 | .37 | -70.79 % |
| 2001 | 1.30 | 254.07 % |
| 2002 | 1.02 | -21.80 % |
| 2003 | 1.08 | 6.25 % |
| 2004 | .98 | -9.07 % |
| 2005 | .99 | 0.27 % |
| 2006 | 1.24 | 25.81 % |
| 2007 | 1.33 | 7.69 % |
| 2008 | 1.46 | 9.52 % |
| 2009 | 1.59 | 8.70 % |
| 2010 | 8.58 | 440.00 % |
|
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