|
| year | consumption | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | .03 | NA |
| 1987 | .02 | -18.92 % |
| 1988 | | NA |
| 1989 | .05 | NA |
| 1990 | .39 | 636.22 % |
| 1991 | .39 | 0.04 % |
| 1992 | 1.33 | 240.30 % |
| 1993 | 1.40 | 5.05 % |
| 1994 | 1.42 | 1.52 % |
| 1995 | 1.46 | 2.98 % |
| 1996 | 1.50 | 2.62 % |
| 1997 | 1.52 | 1.69 % |
| 1998 | 1.52 | 0.00 % |
| 1999 | 1.52 | 0.00 % |
| 2000 | 1.63 | 6.65 % |
| 2001 | 1.63 | 0.27 % |
| 2002 | 1.63 | 0.00 % |
| 2003 | 1.63 | 0.00 % |
| 2004 | 1.71 | 4.91 % |
| 2005 | 1.61 | -5.92 % |
| 2006 | 1.80 | 11.84 % |
| 2007 | 1.59 | -11.76 % |
| 2008 | | NA |
| 2009 | | NA |
| 2010 | | NA |
|
|
