|
| year | consumption | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | .10 | NA |
| 1987 | .15 | 50.33 % |
| 1988 | .50 | 223.08 % |
| 1989 | .28 | -43.96 % |
| 1990 | .30 | 6.59 % |
| 1991 | .31 | 3.26 % |
| 1992 | 1.39 | 354.94 % |
| 1993 | 1.33 | -4.25 % |
| 1994 | 1.39 | 4.76 % |
| 1995 | 1.36 | -2.25 % |
| 1996 | 1.39 | 2.07 % |
| 1997 | 1.39 | 0.29 % |
| 1998 | 1.39 | 0.01 % |
| 1999 | 1.39 | 0.00 % |
| 2000 | 1.52 | 8.85 % |
| 2001 | 1.49 | -1.57 % |
| 2002 | 1.56 | 4.26 % |
| 2003 | 1.56 | 0.00 % |
| 2004 | 1.55 | -0.27 % |
| 2005 | 1.68 | 8.46 % |
| 2006 | 2.42 | 43.40 % |
| 2007 | .92 | -61.84 % |
| 2008 | 1.03 | 12.07 % |
| 2009 | 1.11 | 7.94 % |
| 2010 | 1.11 | 0.00 % |
|
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