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year | production | consumption |
1980 | .43 | .62 |
1981 | .46 | .68 |
1982 | .51 | .78 |
1983 | .52 | .79 |
1984 | .55 | .82 |
1985 | .59 | .88 |
1986 | .65 | .93 |
1987 | .69 | 1.01 |
1988 | .74 | 1.08 |
1989 | .78 | 1.13 |
1990 | .82 | 1.19 |
1991 | .89 | 1.25 |
1992 | .94 | 1.31 |
1993 | .94 | 1.40 |
1994 | 1.02 | 1.53 |
1995 | 1.04 | 1.60 |
1996 | 1.06 | 1.67 |
1997 | 1.07 | 1.69 |
1998 | 1.06 | 1.72 |
1999 | 1.10 | 1.80 |
2000 | 1.15 | 1.85 |
2001 | 1.12 | 1.80 |
2002 | 1.14 | 1.81 |
2003 | 1.25 | 1.91 |
2004 | 1.32 | 1.97 |
2005 | 1.49 | 2.14 |
2006 | 1.65 | 2.39 |
2007 | 1.64 | 2.48 |
2008 | 1.64 | 2.47 |
2009 | 1.66 | 2.51 |
2010 | 1.74 | 2.61 |
2011 | 1.71 | 2.54 |
2012 | 1.81 | 2.64 |
2013 | 1.79 | 2.65 |
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