|
| year | consumption | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | 141.83 | NA |
| 1987 | 152.74 | 7.69 % |
| 1988 | 167.86 | 9.90 % |
| 1989 | 173.02 | 3.07 % |
| 1990 | 177.58 | 2.63 % |
| 1991 | 174.97 | -1.47 % |
| 1992 | 198.34 | 13.36 % |
| 1993 | 181.62 | -8.43 % |
| 1994 | 205.85 | 13.34 % |
| 1995 | 198.40 | -3.62 % |
| 1996 | 202.80 | 2.22 % |
| 1997 | 211.78 | 4.43 % |
| 1998 | 250.05 | 18.07 % |
| 1999 | 226.56 | -9.39 % |
| 2000 | 239.48 | 5.70 % |
| 2001 | 214.20 | -10.56 % |
| 2002 | 219.96 | 2.69 % |
| 2003 | 216.65 | -1.50 % |
| 2004 | 198.42 | -8.41 % |
| 2005 | 202.06 | 1.83 % |
| 2006 | 209.98 | 3.92 % |
| 2007 | | NA |
| 2008 | 202.65 | NA |
| 2009 | 206.95 | 2.12 % |
| 2010 | 191.66 | -7.39 % |
|
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