|
| year | consumption | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | 223.37 | NA |
| 1987 | 244.09 | 9.28 % |
| 1988 | 242.00 | -0.86 % |
| 1989 | 275.00 | 13.64 % |
| 1990 | 280.00 | 1.82 % |
| 1991 | 276.14 | -1.38 % |
| 1992 | 270.69 | -1.97 % |
| 1993 | 288.66 | 6.64 % |
| 1994 | 259.08 | -10.25 % |
| 1995 | 271.28 | 4.71 % |
| 1996 | 246.05 | -9.30 % |
| 1997 | 259.50 | 5.47 % |
| 1998 | 220.08 | -15.19 % |
| 1999 | 231.39 | 5.14 % |
| 2000 | 181.52 | -21.55 % |
| 2001 | 212.32 | 16.97 % |
| 2002 | 216.34 | 1.89 % |
| 2003 | 240.05 | 10.96 % |
| 2004 | 249.76 | 4.04 % |
| 2005 | 258.51 | 3.50 % |
| 2006 | 258.98 | 0.18 % |
| 2007 | 283.19 | 9.35 % |
| 2008 | 329.06 | 16.20 % |
| 2009 | 361.35 | 9.81 % |
| 2010 | 318.70 | -11.80 % |
|
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