|
| year | consumption | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | 158.78 | NA |
| 1987 | 151.76 | -4.42 % |
| 1988 | 209.97 | 38.35 % |
| 1989 | 235.92 | 12.36 % |
| 1990 | 227.43 | -3.60 % |
| 1991 | 234.34 | 3.04 % |
| 1992 | 209.53 | -10.59 % |
| 1993 | 238.53 | 13.84 % |
| 1994 | 265.37 | 11.25 % |
| 1995 | 296.69 | 11.80 % |
| 1996 | 245.17 | -17.36 % |
| 1997 | 308.33 | 25.76 % |
| 1998 | 261.44 | -15.21 % |
| 1999 | 266.93 | 2.10 % |
| 2000 | 333.50 | 24.94 % |
| 2001 | 255.96 | -23.25 % |
| 2002 | 221.79 | -13.35 % |
| 2003 | 221.65 | -0.06 % |
| 2004 | 217.22 | -2.00 % |
| 2005 | 215.27 | -0.90 % |
| 2006 | 222.13 | 3.19 % |
| 2007 | 201.28 | -9.39 % |
| 2008 | 215.69 | 7.16 % |
| 2009 | 104.06 | -51.75 % |
| 2010 | 187.48 | 80.16 % |
|
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