|
| year | consumption | change |
| 1984 | 104.75 | NA |
| 1985 | 109.48 | 4.51 % |
| 1986 | 105.64 | -3.50 % |
| 1987 | 114.00 | 7.91 % |
| 1988 | 117.06 | 2.69 % |
| 1989 | 123.73 | 5.69 % |
| 1990 | 109.39 | -11.59 % |
| 1991 | 125.87 | 15.07 % |
| 1992 | 121.34 | -3.60 % |
| 1993 | 112.27 | -7.47 % |
| 1994 | 111.26 | -0.90 % |
| 1995 | 102.89 | -7.53 % |
| 1996 | 112.62 | 9.46 % |
| 1997 | 109.51 | -2.76 % |
| 1998 | 112.19 | 2.45 % |
| 1999 | 117.85 | 5.05 % |
| 2000 | 114.45 | -2.89 % |
| 2001 | 117.42 | 2.60 % |
| 2002 | 118.44 | 0.87 % |
| 2003 | 111.40 | -5.94 % |
| 2004 | 112.34 | 0.84 % |
| 2005 | 109.83 | -2.24 % |
| 2006 | 122.65 | 11.68 % |
| 2007 | 127.16 | 3.67 % |
| 2008 | 127.78 | 0.49 % |
| 2009 | 122.97 | -3.76 % |
| 2010 | 154.02 | 25.25 % |
|
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