|
| year | consumption | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | .28 | NA |
| 1987 | .21 | -25.00 % |
| 1988 | .14 | -33.33 % |
| 1989 | .14 | 0.00 % |
| 1990 | .08 | -40.00 % |
| 1991 | .03 | -69.79 % |
| 1992 | .03 | 3.47 % |
| 1993 | .02 | -17.82 % |
| 1994 | .01 | -30.91 % |
| 1995 | .01 | -6.77 % |
| 1996 | .01 | -7.63 % |
| 1997 | .01 | -8.72 % |
| 1998 | .87 | 7,354.95 % |
| 1999 | .01 | -99.07 % |
| 2000 | .96 | 11,741.85 % |
| 2001 | .87 | -9.66 % |
| 2002 | 1.22 | 40.34 % |
| 2003 | 1.28 | 5.22 % |
| 2004 | 1.47 | 14.65 % |
| 2005 | 1.63 | 11.17 % |
| 2006 | 2.24 | 37.22 % |
| 2007 | 2.57 | 15.02 % |
| 2008 | 2.42 | -6.17 % |
| 2009 | 1.37 | -43.08 % |
| 2010 | 3.09 | 124.52 % |
|
|
