|
| year | consumption | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | 277.48 | NA |
| 1987 | 278.71 | 0.44 % |
| 1988 | 276.66 | -0.74 % |
| 1989 | 306.97 | 10.96 % |
| 1990 | 163.96 | -46.59 % |
| 1991 | 177.54 | 8.28 % |
| 1992 | 176.59 | -0.53 % |
| 1993 | 185.74 | 5.18 % |
| 1994 | 203.43 | 9.52 % |
| 1995 | 243.27 | 19.59 % |
| 1996 | 284.71 | 17.03 % |
| 1997 | 311.38 | 9.37 % |
| 1998 | 327.42 | 5.15 % |
| 1999 | 311.33 | -4.92 % |
| 2000 | 579.50 | 86.14 % |
| 2001 | 491.85 | -15.13 % |
| 2002 | 279.15 | -43.25 % |
| 2003 | 277.54 | -0.57 % |
| 2004 | 303.66 | 9.41 % |
| 2005 | 307.87 | 1.39 % |
| 2006 | 309.35 | 0.48 % |
| 2007 | 331.18 | 7.06 % |
| 2008 | 327.06 | -1.24 % |
| 2009 | 329.42 | 0.72 % |
| 2010 | 393.08 | 19.32 % |
|
|