|
| year | consumption | change |
| 1980 | .00 | NA |
| 1981 | .00 | NA |
| 1982 | .00 | NA |
| 1983 | .00 | NA |
| 1984 | .00 | NA |
| 1985 | .00 | 0.00 % |
| 1986 | .00 | 0.00 % |
| 1987 | 2.17 | 216,900.00 % |
| 1988 | 1.29 | -40.55 % |
| 1989 | 1.36 | 5.43 % |
| 1990 | 1.32 | -2.94 % |
| 1991 | 1.03 | -21.97 % |
| 1992 | 1.02 | -0.97 % |
| 1993 | 1.50 | 47.06 % |
| 1994 | 2.10 | 40.00 % |
| 1995 | 2.32 | 10.48 % |
| 1996 | 2.57 | 10.78 % |
| 1997 | 3.10 | 20.62 % |
| 1998 | 3.91 | 26.13 % |
| 1999 | 4.60 | 17.65 % |
| 2000 | 5.01 | 8.91 % |
| 2001 | 5.72 | 14.17 % |
| 2002 | 6.54 | 14.34 % |
| 2003 | 9.73 | 48.78 % |
| 2004 | 10.83 | 11.31 % |
| 2005 | 13.86 | 27.98 % |
| 2006 | 15.34 | 10.68 % |
|
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