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year | production | consumption |
1980 | 2.70 | 1.80 |
1981 | 3.00 | 2.20 |
1982 | 3.40 | 2.60 |
1983 | 3.60 | 2.70 |
1984 | 4.10 | 3.00 |
1985 | 4.60 | 3.10 |
1986 | 4.80 | 3.60 |
1987 | 5.60 | 3.80 |
1988 | 6.50 | 4.10 |
1989 | 7.00 | 5.00 |
1990 | 7.60 | 5.00 |
1991 | 8.40 | 5.50 |
1992 | 9.00 | 6.70 |
1993 | 9.30 | 7.50 |
1994 | 10.00 | 8.20 |
1995 | 10.00 | 8.60 |
1996 | 11.00 | 9.00 |
1997 | 11.00 | 9.40 |
1998 | 12.00 | 10.00 |
1999 | 14.00 | 11.00 |
2000 | 15.00 | 12.00 |
2001 | 16.00 | 14.00 |
2002 | 18.00 | 15.00 |
2003 | 19.00 | 16.00 |
2004 | 23.00 | 21.00 |
2005 | 25.00 | 23.00 |
2006 | 29.00 | 27.00 |
2007 | 29.00 | 28.00 |
2008 | 32.00 | 28.00 |
2009 | 35.00 | 31.00 |
2010 | 38.00 | 34.00 |
2011 | 42.00 | 37.00 |
2012 | 46.00 | 40.00 |
2013 | 50.00 | 43.00 |
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