|
| year | consumption | change |
| 1980 | 13,328.00 | NA |
| 1981 | 14,440.00 | 8.34 % |
| 1982 | 15,522.00 | 7.49 % |
| 1983 | 16,822.00 | 8.38 % |
| 1984 | 18,512.00 | 10.05 % |
| 1985 | 20,302.00 | 9.67 % |
| 1986 | 21,522.00 | 6.01 % |
| 1987 | 22,462.23 | 4.37 % |
| 1988 | 24,091.54 | 7.25 % |
| 1989 | 24,528.57 | 1.81 % |
| 1990 | 24,961.00 | 1.76 % |
| 1991 | 25,014.00 | 0.21 % |
| 1992 | | NA |
| 1993 | | NA |
| 1994 | | NA |
| 1995 | | NA |
| 1996 | | NA |
| 1997 | | NA |
| 1998 | | NA |
| 1999 | | NA |
| 2000 | | NA |
| 2001 | | NA |
| 2002 | | NA |
| 2003 | | NA |
| 2004 | | NA |
| 2005 | | NA |
| 2006 | | NA |
| 2007 | | NA |
| 2008 | | NA |
| 2009 | | NA |
| 2010 | | NA |
| 2011 | | NA |
|
|