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year | production | consumption |
1980 | 1.20 | .21 |
1981 | 1.05 | .20 |
1982 | .93 | .24 |
1983 | .84 | .22 |
1984 | 1.09 | .27 |
1985 | .88 | .24 |
1986 | .88 | .26 |
1987 | .86 | .26 |
1988 | .99 | .27 |
1989 | 1.06 | .28 |
1990 | 1.20 | .34 |
1991 | 1.25 | .40 |
1992 | 1.39 | .48 |
1993 | 1.45 | .56 |
1994 | 1.44 | .56 |
1995 | 1.51 | .56 |
1996 | 1.66 | .58 |
1997 | 1.90 | .61 |
1998 | 2.31 | .62 |
1999 | 2.37 | .59 |
2000 | 2.83 | .65 |
2001 | 2.74 | .50 |
2002 | 2.81 | .53 |
2003 | 3.14 | .58 |
2004 | 3.70 | .71 |
2005 | 4.23 | .89 |
2006 | 4.48 | .97 |
2007 | 5.11 | 1.02 |
2008 | 5.91 | 1.08 |
2009 | 6.56 | 1.15 |
2010 | 8.10 | 1.27 |
2011 | 9.53 | 1.46 |
2012 | 9.55 | 1.66 |
2013 | 9.62 | 1.64 |
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