|
| year | consumption | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | .41 | NA |
| 1987 | .06 | -85.34 % |
| 1988 | .49 | 712.10 % |
| 1989 | .50 | 3.03 % |
| 1990 | .21 | -57.81 % |
| 1991 | .21 | 0.00 % |
| 1992 | .30 | 41.91 % |
| 1993 | .21 | -29.53 % |
| 1994 | .19 | -10.00 % |
| 1995 | .98 | 416.03 % |
| 1996 | 1.01 | 2.23 % |
| 1997 | .75 | -25.11 % |
| 1998 | .72 | -4.38 % |
| 1999 | 1.02 | 41.18 % |
| 2000 | 1.35 | 32.97 % |
| 2001 | 1.65 | 22.21 % |
| 2002 | 1.57 | -5.13 % |
| 2003 | 1.50 | -4.05 % |
| 2004 | 1.58 | 5.35 % |
| 2005 | 1.59 | 0.27 % |
| 2006 | 1.63 | 2.67 % |
| 2007 | 1.40 | -14.29 % |
| 2008 | 1.42 | 1.52 % |
| 2009 | 1.19 | -16.42 % |
| 2010 | 1.36 | 14.29 % |
|
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