|
| year | consumption | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | .65 | NA |
| 1987 | .59 | -9.62 % |
| 1988 | .68 | 15.51 % |
| 1989 | .83 | 21.49 % |
| 1990 | .78 | -5.34 % |
| 1991 | .85 | 7.91 % |
| 1992 | .84 | -0.12 % |
| 1993 | 1.01 | 19.87 % |
| 1994 | 1.02 | 1.20 % |
| 1995 | 1.02 | -0.32 % |
| 1996 | 1.20 | 17.83 % |
| 1997 | 2.23 | 85.19 % |
| 1998 | 2.47 | 10.74 % |
| 1999 | 2.50 | 1.49 % |
| 2000 | 1.58 | -37.09 % |
| 2001 | 1.20 | -23.62 % |
| 2002 | 2.31 | 92.05 % |
| 2003 | 2.52 | 9.01 % |
| 2004 | 2.55 | 1.21 % |
| 2005 | 2.19 | -13.90 % |
| 2006 | 3.32 | 51.24 % |
| 2007 | 3.31 | -0.42 % |
| 2008 | 5.69 | 72.12 % |
| 2009 | 5.65 | -0.61 % |
| 2010 | 3.98 | -29.53 % |
|
|
