|
Loading...
| year | production | consumption |
| 1980 | 3.20 | 2.50 |
| 1981 | 3.60 | 3.00 |
| 1982 | 3.30 | 2.40 |
| 1983 | 3.50 | 2.30 |
| 1984 | 4.10 | 3.20 |
| 1985 | 4.30 | 3.20 |
| 1986 | 4.70 | 3.50 |
| 1987 | 4.50 | 3.10 |
| 1988 | 4.30 | 3.30 |
| 1989 | 3.30 | 2.40 |
| 1990 | 3.50 | 2.60 |
| 1991 | 3.70 | 2.70 |
| 1992 | 4.00 | 2.40 |
| 1993 | 5.20 | 3.70 |
| 1994 | 4.80 | 3.20 |
| 1995 | 5.20 | 3.60 |
| 1996 | 6.30 | 4.70 |
| 1997 | 6.80 | 4.80 |
| 1998 | 7.30 | 5.20 |
| 1999 | 8.60 | 6.50 |
| 2000 | 8.10 | 5.80 |
| 2001 | 9.70 | 8.50 |
| 2002 | 12.00 | 8.70 |
| 2003 | 13.00 | 9.20 |
| 2004 | 11.00 | 8.00 |
| 2005 | 12.00 | 11.00 |
| 2006 | 13.00 | 11.00 |
| 2007 | 14.00 | 12.00 |
| 2008 | 12.00 | 10.00 |
| 2009 | 12.00 | 9.90 |
| 2010 | 12.00 | 10.00 |
| 2011 | 13.00 | 11.00 |
| 2012 | 14.00 | 12.00 |
| 2013 | 14.00 | 12.00 |
|
|
