|
| year | consumption | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | .25 | NA |
| 1987 | .27 | 8.33 % |
| 1988 | .29 | 7.40 % |
| 1989 | .31 | 7.44 % |
| 1990 | .37 | 20.00 % |
| 1991 | .37 | 0.00 % |
| 1992 | .37 | -0.27 % |
| 1993 | .39 | 5.84 % |
| 1994 | .51 | 31.58 % |
| 1995 | .53 | 4.02 % |
| 1996 | .52 | -2.16 % |
| 1997 | .56 | 6.92 % |
| 1998 | .55 | -0.75 % |
| 1999 | .55 | 0.00 % |
| 2000 | .12 | -77.57 % |
| 2001 | .63 | 412.71 % |
| 2002 | .74 | 15.95 % |
| 2003 | .69 | -5.56 % |
| 2004 | .69 | -0.27 % |
| 2005 | .69 | 0.27 % |
| 2006 | .76 | 9.23 % |
| 2007 | .76 | -0.37 % |
| 2008 | .77 | 1.46 % |
| 2009 | .89 | 15.37 % |
| 2010 | .88 | -0.72 % |
|
|
