|
| year | consumption | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | | NA |
| 1987 | | NA |
| 1988 | | NA |
| 1989 | | NA |
| 1990 | | NA |
| 1991 | | NA |
| 1992 | 222.20 | NA |
| 1993 | 146.11 | -34.24 % |
| 1994 | 131.86 | -9.75 % |
| 1995 | 138.91 | 5.34 % |
| 1996 | 115.89 | -16.57 % |
| 1997 | 140.06 | 20.85 % |
| 1998 | 106.66 | -23.85 % |
| 1999 | 146.95 | 37.78 % |
| 2000 | 129.47 | -11.90 % |
| 2001 | 227.54 | 75.75 % |
| 2002 | 216.74 | -4.74 % |
| 2003 | 241.86 | 11.59 % |
| 2004 | 252.80 | 4.53 % |
| 2005 | 270.29 | 6.92 % |
| 2006 | 296.92 | 9.85 % |
| 2007 | 306.30 | 3.16 % |
| 2008 | 325.98 | 6.42 % |
| 2009 | 349.62 | 7.25 % |
| 2010 | 337.62 | -3.43 % |
|
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