|
| year | consumption | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | 106.09 | NA |
| 1987 | 105.45 | -0.60 % |
| 1988 | 109.13 | 3.49 % |
| 1989 | 112.73 | 3.29 % |
| 1990 | 112.29 | -0.39 % |
| 1991 | 106.17 | -5.45 % |
| 1992 | 89.67 | -15.54 % |
| 1993 | 89.17 | -0.55 % |
| 1994 | 86.30 | -3.22 % |
| 1995 | 87.27 | 1.12 % |
| 1996 | 79.49 | -8.92 % |
| 1997 | 74.72 | -6.00 % |
| 1998 | 95.36 | 27.63 % |
| 1999 | 97.02 | 1.74 % |
| 2000 | 93.08 | -4.06 % |
| 2001 | 94.74 | 1.78 % |
| 2002 | 107.33 | 13.30 % |
| 2003 | 107.80 | 0.44 % |
| 2004 | 93.96 | -12.85 % |
| 2005 | 93.24 | -0.76 % |
| 2006 | 42.35 | -54.59 % |
| 2007 | 43.08 | 1.73 % |
| 2008 | 87.54 | 103.20 % |
| 2009 | 49.28 | -43.70 % |
| 2010 | 60.98 | 23.74 % |
|
|
