|
Loading...
| year | production | consumption |
| 1986 | 3.10 | 3.20 |
| 1987 | 3.40 | 3.60 |
| 1988 | 3.30 | 4.10 |
| 1989 | 3.00 | 3.80 |
| 1990 | 2.80 | 4.10 |
| 1991 | 3.10 | 4.20 |
| 1992 | 3.50 | 4.90 |
| 1993 | 4.60 | 5.30 |
| 1994 | 5.60 | 6.80 |
| 1995 | 3.70 | 5.80 |
| 1996 | 4.60 | 6.80 |
| 1997 | 3.50 | 6.50 |
| 1998 | 3.10 | 8.00 |
| 1999 | 3.10 | 8.40 |
| 2000 | 3.20 | 8.20 |
| 2001 | 2.90 | 8.40 |
| 2002 | 3.00 | 7.80 |
| 2003 | 3.20 | 9.70 |
| 2004 | 3.30 | 10.00 |
| 2005 | 3.40 | 10.00 |
| 2006 | 2.50 | 9.60 |
| 2007 | 2.70 | 10.00 |
| 2008 | 2.60 | 9.70 |
| 2009 | 2.50 | 10.00 |
| 2010 | 2.30 | 10.00 |
| 2011 | 2.20 | 10.00 |
| 2012 | 1.70 | 10.00 |
|
|