|
| year | consumption | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | .04 | NA |
| 1987 | .11 | 150.04 % |
| 1988 | .11 | -0.27 % |
| 1989 | .11 | 0.27 % |
| 1990 | .11 | 0.00 % |
| 1991 | .11 | 0.00 % |
| 1992 | .11 | -0.27 % |
| 1993 | | NA |
| 1994 | | NA |
| 1995 | .13 | NA |
| 1996 | .13 | -0.27 % |
| 1997 | .13 | 0.27 % |
| 1998 | .11 | -16.66 % |
| 1999 | 1.25 | 1,080.01 % |
| 2000 | .21 | -83.10 % |
| 2001 | .21 | 0.27 % |
| 2002 | .21 | 0.00 % |
| 2003 | .21 | 0.00 % |
| 2004 | .21 | -0.27 % |
| 2005 | .32 | 50.41 % |
| 2006 | .04 | -86.67 % |
| 2007 | .04 | 0.00 % |
| 2008 | .02 | -50.00 % |
| 2009 | | NA |
| 2010 | | NA |
|
|