|
| year | consumption | change |
| 1980 | 594.00 | NA |
| 1981 | 584.00 | -1.68 % |
| 1982 | 616.00 | 5.48 % |
| 1983 | 594.00 | -3.57 % |
| 1984 | 635.00 | 6.90 % |
| 1985 | 639.00 | 0.63 % |
| 1986 | 644.00 | 0.78 % |
| 1987 | 661.00 | 2.64 % |
| 1988 | 694.00 | 4.99 % |
| 1989 | 723.00 | 4.18 % |
| 1990 | 738.00 | 2.07 % |
| 1991 | 721.00 | -2.30 % |
| 1992 | 730.00 | 1.25 % |
| 1993 | 761.00 | 4.25 % |
| 1994 | 788.00 | 3.55 % |
| 1995 | 811.00 | 2.92 % |
| 1996 | 831.00 | 2.47 % |
| 1997 | 848.00 | 2.05 % |
| 1998 | 852.00 | 0.47 % |
| 1999 | 875.00 | 2.70 % |
| 2000 | 872.43 | -0.29 % |
| 2001 | 871.07 | -0.16 % |
| 2002 | 882.42 | 1.30 % |
| 2003 | 888.03 | 0.64 % |
| 2004 | 912.88 | 2.80 % |
| 2005 | 954.85 | 4.60 % |
| 2006 | 962.03 | 0.75 % |
| 2007 | 976.44 | 1.50 % |
| 2008 | 963.63 | -1.31 % |
| 2009 | 974.99 | 1.18 % |
| 2010 | 988.83 | 1.42 % |
| 2011 | 1,023.12 | 3.47 % |
|
|