|
| year | consumption | change |
| 1980 | 2.20 | NA |
| 1981 | 3.31 | 50.00 % |
| 1982 | 3.31 | 0.00 % |
| 1983 | 3.31 | 0.00 % |
| 1984 | 9.92 | 200.00 % |
| 1985 | 38.58 | 288.89 % |
| 1986 | 8.82 | -77.14 % |
| 1987 | 38.58 | 337.50 % |
| 1988 | 28.66 | -25.71 % |
| 1989 | 12.13 | -57.69 % |
| 1990 | 35.27 | 190.91 % |
| 1991 | 49.73 | 40.98 % |
| 1992 | 54.01 | 8.61 % |
| 1993 | 58.42 | 8.16 % |
| 1994 | 59.52 | 1.89 % |
| 1995 | 56.22 | -5.56 % |
| 1996 | 110.23 | 96.08 % |
| 1997 | 62.83 | -43.00 % |
| 1998 | 62.83 | 0.00 % |
| 1999 | 66.14 | 5.26 % |
| 2000 | 66.14 | 0.00 % |
| 2001 | 69.45 | 5.00 % |
| 2002 | 49.60 | -28.57 % |
| 2003 | | NA |
| 2004 | 1.96 | NA |
| 2005 | 1.96 | 0.00 % |
| 2006 | 252.18 | 12,752.27 % |
| 2007 | 246.41 | -2.29 % |
| 2008 | 34.50 | -86.00 % |
| 2009 | 69.03 | 100.06 % |
| 2010 | 118.54 | 71.73 % |
| 2011 | 87.45 | -26.23 % |
|
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