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year | production | consumption |
1986 | 6.10 | 4.60 |
1987 | 4.60 | 4.60 |
1988 | 3.10 | 3.10 |
1989 | 3.10 | 3.50 |
1990 | 3.40 | 3.40 |
1991 | 3.10 | 3.10 |
1992 | 3.40 | 3.50 |
1993 | 4.00 | 4.00 |
1994 | 4.50 | 4.50 |
1995 | 4.90 | 4.90 |
1996 | 4.00 | 4.20 |
1997 | 6.00 | 6.00 |
1998 | 6.30 | 7.20 |
1999 | 6.20 | 7.20 |
2000 | 6.10 | 8.00 |
2001 | 5.40 | 7.40 |
2002 | 6.40 | 7.90 |
2003 | 8.40 | 8.90 |
2004 | 8.60 | 9.20 |
2005 | 8.60 | 9.40 |
2006 | 8.30 | 8.80 |
2007 | 8.60 | 8.60 |
2008 | 8.00 | 8.60 |
2009 | 8.40 | 8.90 |
2010 | 9.90 | 12.00 |
2011 | 8.90 | 8.80 |
2012 | 7.70 | 13.00 |
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