|
| year | consumption | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | 120.00 | NA |
| 1987 | 128.30 | 6.92 % |
| 1988 | 120.00 | -6.47 % |
| 1989 | 137.00 | 14.17 % |
| 1990 | 142.40 | 3.94 % |
| 1991 | 125.10 | -12.15 % |
| 1992 | 127.95 | 2.28 % |
| 1993 | 101.65 | -20.55 % |
| 1994 | 140.00 | 37.72 % |
| 1995 | 177.58 | 26.84 % |
| 1996 | 130.40 | -26.57 % |
| 1997 | 186.32 | 42.89 % |
| 1998 | 150.00 | -19.50 % |
| 1999 | 26.13 | -82.58 % |
| 2000 | 150.00 | 473.97 % |
| 2001 | 170.48 | 13.66 % |
| 2002 | 144.01 | -15.53 % |
| 2003 | 130.82 | -9.16 % |
| 2004 | 133.08 | 1.73 % |
| 2005 | 120.25 | -9.64 % |
| 2006 | 131.90 | 9.69 % |
| 2007 | 138.67 | 5.14 % |
| 2008 | 130.99 | -5.54 % |
| 2009 | 116.29 | -11.22 % |
| 2010 | 96.87 | -16.70 % |
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