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year | production | consumption |
1980 | .55 | .17 |
1981 | .61 | .17 |
1982 | .50 | .17 |
1983 | .49 | .19 |
1984 | .58 | .25 |
1985 | .61 | .27 |
1986 | .53 | .21 |
1987 | .50 | .19 |
1988 | .51 | .20 |
1989 | .51 | .21 |
1990 | .52 | .23 |
1991 | .55 | .25 |
1992 | .51 | .25 |
1993 | .54 | .27 |
1994 | .56 | .31 |
1995 | .58 | .33 |
1996 | .62 | .36 |
1997 | .63 | .39 |
1998 | .63 | .39 |
1999 | .73 | .40 |
2000 | .82 | .42 |
2001 | .84 | .47 |
2002 | .94 | .50 |
2003 | 1.25 | .54 |
2004 | 1.35 | .59 |
2005 | 1.48 | .67 |
2006 | 1.71 | .82 |
2007 | 1.76 | .82 |
2008 | 1.76 | .90 |
2009 | 1.81 | .85 |
2010 | 1.86 | .94 |
2011 | 1.77 | .93 |
2012 | 1.81 | .83 |
2013 | 1.81 | .84 |
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