|
| year | consumption | change |
| 1984 | 81.81 | NA |
| 1985 | 86.38 | 5.59 % |
| 1986 | 89.33 | 3.42 % |
| 1987 | 98.71 | 10.49 % |
| 1988 | 104.05 | 5.41 % |
| 1989 | 106.16 | 2.02 % |
| 1990 | 96.17 | -9.41 % |
| 1991 | 98.43 | 2.35 % |
| 1992 | 98.49 | 0.06 % |
| 1993 | 108.72 | 10.39 % |
| 1994 | 105.39 | -3.06 % |
| 1995 | 109.67 | 4.06 % |
| 1996 | 111.53 | 1.69 % |
| 1997 | 107.45 | -3.66 % |
| 1998 | 108.24 | 0.74 % |
| 1999 | 130.27 | 20.35 % |
| 2000 | 127.75 | -1.93 % |
| 2001 | 122.42 | -4.18 % |
| 2002 | 117.78 | -3.79 % |
| 2003 | 117.21 | -0.49 % |
| 2004 | 110.60 | -5.63 % |
| 2005 | 110.47 | -0.12 % |
| 2006 | 102.81 | -6.94 % |
| 2007 | 96.58 | -6.05 % |
| 2008 | 99.74 | 3.27 % |
| 2009 | 104.78 | 5.06 % |
| 2010 | 105.13 | 0.33 % |
|
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