|
| year | consumption | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | | NA |
| 1987 | | NA |
| 1988 | | NA |
| 1989 | | NA |
| 1990 | | NA |
| 1991 | | NA |
| 1992 | 2.79 | NA |
| 1993 | .68 | -75.80 % |
| 1994 | .42 | -37.42 % |
| 1995 | .48 | 13.32 % |
| 1996 | .82 | 72.25 % |
| 1997 | 1.57 | 90.43 % |
| 1998 | 1.51 | -4.07 % |
| 1999 | 1.19 | -21.18 % |
| 2000 | .32 | -72.92 % |
| 2001 | 1.91 | 494.83 % |
| 2002 | 1.98 | 3.40 % |
| 2003 | 2.51 | 27.12 % |
| 2004 | 5.08 | 101.96 % |
| 2005 | 5.25 | 3.46 % |
| 2006 | | NA |
| 2007 | | NA |
| 2008 | | NA |
| 2009 | | NA |
| 2010 | | NA |
|
|
