|
| year | consumption | change |
| 1980 | 56.00 | NA |
| 1981 | 65.93 | 17.74 % |
| 1982 | 70.38 | 6.75 % |
| 1983 | 75.29 | 6.97 % |
| 1984 | 71.94 | -4.46 % |
| 1985 | 82.00 | 13.99 % |
| 1986 | 87.00 | 6.10 % |
| 1987 | 100.00 | 14.94 % |
| 1988 | 129.00 | 29.00 % |
| 1989 | 172.00 | 33.33 % |
| 1990 | 192.00 | 11.63 % |
| 1991 | 216.00 | 12.50 % |
| 1992 | 227.78 | 5.45 % |
| 1993 | 224.43 | -1.47 % |
| 1994 | 239.29 | 6.62 % |
| 1995 | 298.59 | 24.78 % |
| 1996 | 334.15 | 11.91 % |
| 1997 | 437.24 | 30.85 % |
| 1998 | 448.89 | 2.67 % |
| 1999 | 513.83 | 14.47 % |
| 2000 | 588.45 | 14.52 % |
| 2001 | 634.12 | 7.76 % |
| 2002 | 725.02 | 14.34 % |
| 2003 | 821.74 | 13.34 % |
| 2004 | 953.93 | 16.09 % |
| 2005 | 1,125.95 | 18.03 % |
| 2006 | 1,208.09 | 7.30 % |
| 2007 | 1,299.13 | 7.54 % |
| 2008 | 1,423.87 | 9.60 % |
| 2009 | 1,272.47 | -10.63 % |
| 2010 | 1,265.13 | -0.58 % |
| 2011 | 1,185.00 | -6.33 % |
|
|
