|
| year | consumption | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | .28 | NA |
| 1987 | .36 | 30.91 % |
| 1988 | .47 | 29.42 % |
| 1989 | .66 | 40.80 % |
| 1990 | 1.12 | 71.04 % |
| 1991 | .11 | -90.56 % |
| 1992 | .32 | 199.37 % |
| 1993 | .32 | 0.00 % |
| 1994 | .32 | 0.21 % |
| 1995 | .42 | 33.33 % |
| 1996 | .49 | 14.69 % |
| 1997 | .42 | -12.80 % |
| 1998 | .42 | -0.13 % |
| 1999 | .42 | 0.13 % |
| 2000 | .11 | -75.00 % |
| 2001 | .32 | 200.00 % |
| 2002 | 1.32 | 314.79 % |
| 2003 | .32 | -75.89 % |
| 2004 | .32 | 0.00 % |
| 2005 | .32 | 0.00 % |
| 2006 | .32 | 0.00 % |
| 2007 | .32 | 0.00 % |
| 2008 | .32 | 0.00 % |
| 2009 | | NA |
| 2010 | .06 | NA |
|
|