|
| year | consumption | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | .61 | NA |
| 1987 | .61 | -0.03 % |
| 1988 | .73 | 20.69 % |
| 1989 | .67 | -8.32 % |
| 1990 | .74 | 9.53 % |
| 1991 | .70 | -4.33 % |
| 1992 | .70 | -0.23 % |
| 1993 | .74 | 4.78 % |
| 1994 | .74 | -0.08 % |
| 1995 | .74 | 0.30 % |
| 1996 | .83 | 12.37 % |
| 1997 | 1.32 | 59.23 % |
| 1998 | 1.89 | 43.27 % |
| 1999 | 1.78 | -6.15 % |
| 2000 | 1.76 | -0.72 % |
| 2001 | 2.18 | 23.81 % |
| 2002 | 2.50 | 14.65 % |
| 2003 | 2.73 | 8.94 % |
| 2004 | 2.59 | -5.01 % |
| 2005 | 2.76 | 6.45 % |
| 2006 | 3.17 | 15.07 % |
| 2007 | 5.37 | 69.37 % |
| 2008 | 4.58 | -14.79 % |
| 2009 | 5.27 | 15.05 % |
| 2010 | 5.20 | -1.22 % |
|
|
