|
| year | consumption | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | | NA |
| 1987 | | NA |
| 1988 | | NA |
| 1989 | | NA |
| 1990 | | NA |
| 1991 | 726.37 | NA |
| 1992 | 725.64 | -0.10 % |
| 1993 | 729.90 | 0.59 % |
| 1994 | 689.91 | -5.48 % |
| 1995 | 697.62 | 1.12 % |
| 1996 | 698.99 | 0.20 % |
| 1997 | 699.75 | 0.11 % |
| 1998 | 701.02 | 0.18 % |
| 1999 | 700.31 | -0.10 % |
| 2000 | 665.05 | -5.03 % |
| 2001 | 647.04 | -2.71 % |
| 2002 | 629.58 | -2.70 % |
| 2003 | 598.45 | -4.95 % |
| 2004 | 578.53 | -3.33 % |
| 2005 | 542.45 | -6.24 % |
| 2006 | 523.30 | -3.53 % |
| 2007 | 492.92 | -5.81 % |
| 2008 | 479.71 | -2.68 % |
| 2009 | 473.17 | -1.36 % |
| 2010 | 459.17 | -2.96 % |
|
|