|
| year | consumption | change |
| 1980 | | NA |
| 1981 | | NA |
| 1982 | | NA |
| 1983 | | NA |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | | NA |
| 1987 | | NA |
| 1988 | | NA |
| 1989 | | NA |
| 1990 | | NA |
| 1991 | | NA |
| 1992 | 42,808.26 | NA |
| 1993 | 41,139.36 | -3.90 % |
| 1994 | 37,812.59 | -8.09 % |
| 1995 | 45,486.88 | 20.30 % |
| 1996 | 44,959.97 | -1.16 % |
| 1997 | 47,412.62 | 5.46 % |
| 1998 | 49,360.40 | 4.11 % |
| 1999 | 36,790.74 | -25.47 % |
| 2000 | 45,242.16 | 22.97 % |
| 2001 | 45,324.84 | 0.18 % |
| 2002 | 47,477.65 | 4.75 % |
| 2003 | 50,096.75 | 5.52 % |
| 2004 | 50,794.51 | 1.39 % |
| 2005 | 46,305.89 | -8.84 % |
| 2006 | | NA |
| 2007 | | NA |
| 2008 | | NA |
| 2009 | | NA |
| 2010 | | NA |
| 2011 | | NA |
|
|
