|
| year | consumption | change |
| 1984 | 211.69 | NA |
| 1985 | 187.06 | -11.64 % |
| 1986 | 191.56 | 2.41 % |
| 1987 | 185.02 | -3.41 % |
| 1988 | 193.80 | 4.74 % |
| 1989 | 191.97 | -0.94 % |
| 1990 | 190.60 | -0.71 % |
| 1991 | 203.91 | 6.98 % |
| 1992 | 219.64 | 7.72 % |
| 1993 | 200.52 | -8.71 % |
| 1994 | 210.62 | 5.03 % |
| 1995 | 232.12 | 10.21 % |
| 1996 | 205.51 | -11.46 % |
| 1997 | 213.38 | 3.83 % |
| 1998 | 238.27 | 11.66 % |
| 1999 | 255.24 | 7.12 % |
| 2000 | 246.58 | -3.39 % |
| 2001 | 256.87 | 4.17 % |
| 2002 | 275.39 | 7.21 % |
| 2003 | 253.02 | -8.12 % |
| 2004 | 238.30 | -5.82 % |
| 2005 | 247.41 | 3.82 % |
| 2006 | 224.27 | -9.35 % |
| 2007 | 214.55 | -4.34 % |
| 2008 | 213.73 | -0.38 % |
| 2009 | 203.84 | -4.63 % |
| 2010 | 189.33 | -7.12 % |
|
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