|
| year | consumption | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | .02 | NA |
| 1987 | .25 | 1,222.78 % |
| 1988 | .13 | -47.03 % |
| 1989 | .29 | 122.29 % |
| 1990 | .31 | 6.82 % |
| 1991 | .47 | 50.90 % |
| 1992 | .51 | 9.49 % |
| 1993 | .50 | -2.27 % |
| 1994 | .50 | 0.00 % |
| 1995 | .50 | 0.00 % |
| 1996 | .50 | 0.00 % |
| 1997 | .57 | 14.66 % |
| 1998 | .20 | -65.72 % |
| 1999 | .20 | 0.01 % |
| 2000 | .04 | -79.33 % |
| 2001 | 1.21 | 2,882.53 % |
| 2002 | 1.21 | 0.00 % |
| 2003 | .13 | -88.92 % |
| 2004 | .13 | -0.28 % |
| 2005 | .29 | 113.99 % |
| 2006 | .26 | -7.53 % |
| 2007 | .26 | 0.00 % |
| 2008 | .36 | 34.23 % |
| 2009 | .34 | -5.39 % |
| 2010 | .31 | -8.80 % |
|
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