|
| year | consumption | change |
| 1984 | 69.90 | NA |
| 1985 | 69.98 | 0.11 % |
| 1986 | 74.73 | 6.78 % |
| 1987 | 80.97 | 8.35 % |
| 1988 | 81.62 | 0.80 % |
| 1989 | 87.65 | 7.39 % |
| 1990 | 92.51 | 5.54 % |
| 1991 | 91.01 | -1.62 % |
| 1992 | 93.49 | 2.72 % |
| 1993 | 96.93 | 3.68 % |
| 1994 | 98.71 | 1.84 % |
| 1995 | 103.52 | 4.87 % |
| 1996 | 100.08 | -3.32 % |
| 1997 | 100.73 | 0.64 % |
| 1998 | 108.24 | 7.46 % |
| 1999 | 101.82 | -5.93 % |
| 2000 | 107.10 | 5.18 % |
| 2001 | 106.88 | -0.20 % |
| 2002 | 101.12 | -5.39 % |
| 2003 | 101.61 | 0.48 % |
| 2004 | 103.09 | 1.46 % |
| 2005 | 99.41 | -3.58 % |
| 2006 | 107.51 | 8.15 % |
| 2007 | 107.57 | 0.06 % |
| 2008 | 106.71 | -0.80 % |
| 2009 | 92.24 | -13.56 % |
| 2010 | 83.80 | -9.15 % |
|
|
