|
| year | consumption | change |
| 1980 | 6.61 | NA |
| 1981 | 6.61 | 0.00 % |
| 1982 | 3.31 | -50.00 % |
| 1983 | | NA |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | | NA |
| 1987 | | NA |
| 1988 | | NA |
| 1989 | | NA |
| 1990 | | NA |
| 1991 | | NA |
| 1992 | | NA |
| 1993 | 122.36 | NA |
| 1994 | 123.46 | 0.90 % |
| 1995 | 203.93 | 65.18 % |
| 1996 | 225.97 | 10.81 % |
| 1997 | 225.97 | 0.00 % |
| 1998 | 220.46 | -2.44 % |
| 1999 | 220.46 | 0.00 % |
| 2000 | 220.46 | 0.00 % |
| 2001 | 220.46 | 0.00 % |
| 2002 | 220.46 | 0.00 % |
| 2003 | 220.46 | 0.00 % |
| 2004 | 220.46 | 0.00 % |
| 2005 | 220.46 | 0.00 % |
| 2006 | 220.46 | 0.00 % |
| 2007 | 220.46 | 0.00 % |
| 2008 | 220.46 | 0.00 % |
| 2009 | 220.46 | 0.00 % |
| 2010 | 374.79 | 70.00 % |
| 2011 | 318.57 | -15.00 % |
|
|