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year | production | consumption |
1980 | .41 | .27 |
1981 | .41 | .29 |
1982 | .40 | .30 |
1983 | .41 | .33 |
1984 | .43 | .37 |
1985 | .44 | .39 |
1986 | .48 | .38 |
1987 | .57 | .44 |
1988 | .65 | .45 |
1989 | .83 | .48 |
1990 | 1.00 | .56 |
1991 | 1.26 | .52 |
1992 | 1.24 | .54 |
1993 | 1.41 | .60 |
1994 | 1.43 | .63 |
1995 | 1.44 | .61 |
1996 | 1.51 | .65 |
1997 | 1.48 | .70 |
1998 | 1.50 | .75 |
1999 | 1.48 | .77 |
2000 | 1.46 | .78 |
2001 | 1.37 | .76 |
2002 | 1.42 | .82 |
2003 | 1.40 | .83 |
2004 | 1.38 | .85 |
2005 | 1.29 | .81 |
2006 | 1.23 | .81 |
2007 | 1.16 | .85 |
2008 | 1.13 | .98 |
2009 | 1.13 | .99 |
2010 | 1.26 | 1.02 |
2011 | 1.13 | .94 |
2012 | .64 | .74 |
2013 | .38 | .88 |
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