|
| year | consumption | change |
| 1984 | 41.16 | NA |
| 1985 | 41.20 | 0.09 % |
| 1986 | 42.57 | 3.33 % |
| 1987 | 45.45 | 6.76 % |
| 1988 | 48.65 | 7.03 % |
| 1989 | 51.30 | 5.44 % |
| 1990 | 54.24 | 5.74 % |
| 1991 | 56.94 | 4.98 % |
| 1992 | 59.52 | 4.53 % |
| 1993 | 60.57 | 1.77 % |
| 1994 | 63.58 | 4.96 % |
| 1995 | 66.81 | 5.08 % |
| 1996 | 71.56 | 7.10 % |
| 1997 | 77.11 | 7.76 % |
| 1998 | 84.70 | 9.84 % |
| 1999 | 90.16 | 6.45 % |
| 2000 | 101.20 | 12.25 % |
| 2001 | 109.06 | 7.76 % |
| 2002 | 110.59 | 1.41 % |
| 2003 | 112.08 | 1.35 % |
| 2004 | 115.84 | 3.35 % |
| 2005 | 115.02 | -0.71 % |
| 2006 | 111.55 | -3.01 % |
| 2007 | 113.14 | 1.42 % |
| 2008 | 110.62 | -2.23 % |
| 2009 | 112.39 | 1.60 % |
| 2010 | 114.99 | 2.31 % |
|
|
