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year | production | consumption |
1986 | 2.30 | 1.80 |
1987 | 2.50 | 1.80 |
1988 | 2.30 | 1.60 |
1989 | 2.50 | 1.60 |
1990 | 2.50 | 1.70 |
1991 | 2.50 | 1.60 |
1992 | 2.60 | 1.70 |
1993 | 2.60 | 1.80 |
1994 | 2.50 | 1.60 |
1995 | 2.50 | 1.70 |
1996 | 2.60 | 1.70 |
1997 | 2.30 | 1.50 |
1998 | 2.40 | 2.50 |
1999 | 3.70 | 3.80 |
2000 | 3.10 | 3.20 |
2001 | 2.90 | 3.50 |
2002 | 2.50 | 4.20 |
2003 | 2.50 | 3.00 |
2004 | 2.20 | 7.00 |
2005 | 3.10 | 7.10 |
2006 | 2.30 | 11.00 |
2007 | 1.30 | 11.00 |
2008 | 1.60 | 14.00 |
2009 | 1.00 | 18.00 |
2010 | 1.50 | 24.00 |
2011 | 1.50 | 25.00 |
2012 | 1.70 | 25.00 |
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