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year | production | consumption |
1980 | 2.30 | 2.00 |
1981 | 2.60 | 2.30 |
1982 | 2.90 | 2.60 |
1983 | 3.10 | 2.80 |
1984 | 3.30 | 3.00 |
1985 | 3.70 | 3.50 |
1986 | 4.00 | 3.80 |
1987 | 4.20 | 3.90 |
1988 | 4.20 | 3.90 |
1989 | 4.40 | 4.10 |
1990 | 4.50 | 4.30 |
1991 | 4.40 | 4.10 |
1992 | 4.80 | 4.60 |
1993 | 5.20 | 4.90 |
1994 | 5.50 | 5.10 |
1995 | 5.60 | 5.20 |
1996 | 6.20 | 5.80 |
1997 | 6.50 | 6.00 |
1998 | 7.60 | 7.10 |
1999 | 8.40 | 7.80 |
2000 | 8.60 | 8.00 |
2001 | 9.40 | 8.70 |
2002 | 10.00 | 9.50 |
2003 | 11.00 | 10.00 |
2004 | 12.00 | 12.00 |
2005 | 14.00 | 13.00 |
2006 | 16.00 | 15.00 |
2007 | 18.00 | 17.00 |
2008 | 20.00 | 19.00 |
2009 | 23.00 | 21.00 |
2010 | 26.00 | 25.00 |
2011 | 29.00 | 27.00 |
2012 | 33.00 | 31.00 |
2013 | 33.00 | 30.00 |
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