|
| year | consumption | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | .29 | NA |
| 1987 | .27 | -7.14 % |
| 1988 | .26 | -0.27 % |
| 1989 | .55 | 108.26 % |
| 1990 | .55 | 0.00 % |
| 1991 | .59 | 7.41 % |
| 1992 | .55 | -7.15 % |
| 1993 | .61 | 11.42 % |
| 1994 | .61 | 0.00 % |
| 1995 | .61 | -0.27 % |
| 1996 | .63 | 3.33 % |
| 1997 | .65 | 3.51 % |
| 1998 | .65 | 0.00 % |
| 1999 | .65 | 0.00 % |
| 2000 | .90 | 37.12 % |
| 2001 | .76 | -15.68 % |
| 2002 | .76 | 0.00 % |
| 2003 | .76 | 0.00 % |
| 2004 | .61 | -19.14 % |
| 2005 | .65 | 6.96 % |
| 2006 | .65 | 0.00 % |
| 2007 | .72 | 9.37 % |
| 2008 | 2.96 | 314.29 % |
| 2009 | 1.47 | -50.34 % |
| 2010 | 2.96 | 101.43 % |
|
|