|
| year | consumption | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | 47.00 | NA |
| 1987 | 53.00 | 12.77 % |
| 1988 | 56.00 | 5.66 % |
| 1989 | 62.00 | 10.71 % |
| 1990 | 75.00 | 20.97 % |
| 1991 | 46.70 | -37.73 % |
| 1992 | 57.33 | 22.77 % |
| 1993 | 66.60 | 16.17 % |
| 1994 | 65.67 | -1.40 % |
| 1995 | 69.88 | 6.41 % |
| 1996 | 69.92 | 0.06 % |
| 1997 | 68.61 | -1.87 % |
| 1998 | 71.65 | 4.43 % |
| 1999 | 69.10 | -3.56 % |
| 2000 | 76.00 | 9.98 % |
| 2001 | 78.29 | 3.01 % |
| 2002 | 79.48 | 1.52 % |
| 2003 | 65.34 | -17.79 % |
| 2004 | 111.43 | 70.53 % |
| 2005 | 139.40 | 25.11 % |
| 2006 | 138.28 | -0.80 % |
| 2007 | 90.23 | -34.75 % |
| 2008 | 92.87 | 2.93 % |
| 2009 | 97.29 | 4.76 % |
| 2010 | 115.19 | 18.40 % |
|
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