|
| year | consumption | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | .60 | NA |
| 1987 | .01 | -98.21 % |
| 1988 | .20 | 1,777.32 % |
| 1989 | .10 | -51.20 % |
| 1990 | | NA |
| 1991 | 2.09 | NA |
| 1992 | .80 | -61.68 % |
| 1993 | .77 | -3.96 % |
| 1994 | .82 | 6.78 % |
| 1995 | .80 | -2.22 % |
| 1996 | .80 | -0.27 % |
| 1997 | .82 | 2.55 % |
| 1998 | .82 | 0.00 % |
| 1999 | | NA |
| 2000 | | NA |
| 2001 | | NA |
| 2002 | | NA |
| 2003 | 2.86 | NA |
| 2004 | 2.98 | 4.17 % |
| 2005 | 2.86 | -4.01 % |
| 2006 | 2.19 | -23.57 % |
| 2007 | 2.45 | 12.03 % |
| 2008 | .38 | -84.38 % |
| 2009 | .38 | 0.00 % |
| 2010 | .36 | -4.76 % |
|
|
