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year | production | consumption |
1980 | .67 | 2.03 |
1981 | .74 | 2.00 |
1982 | .64 | 1.84 |
1983 | .64 | 1.77 |
1984 | .74 | 1.87 |
1985 | .78 | 1.87 |
1986 | .72 | 1.82 |
1987 | .69 | 1.87 |
1988 | .70 | 1.86 |
1989 | .72 | 1.95 |
1990 | .72 | 1.97 |
1991 | .75 | 2.04 |
1992 | .73 | 1.99 |
1993 | .77 | 2.03 |
1994 | .80 | 2.15 |
1995 | .83 | 2.26 |
1996 | .90 | 2.33 |
1997 | .95 | 2.48 |
1998 | .94 | 2.54 |
1999 | 1.10 | 2.73 |
2000 | 1.20 | 2.73 |
2001 | 1.22 | 2.93 |
2002 | 1.32 | 2.98 |
2003 | 1.67 | 3.15 |
2004 | 1.79 | 3.32 |
2005 | 1.90 | 3.35 |
2006 | 2.15 | 3.47 |
2007 | 2.20 | 3.49 |
2008 | 2.25 | 3.37 |
2009 | 2.27 | 3.41 |
2010 | 2.35 | 3.51 |
2011 | 2.27 | 3.58 |
2012 | 2.32 | 3.57 |
2013 | 2.34 | 3.59 |
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