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year | production | consumption |
1986 | 1.00 | 1.00 |
1987 | 1.00 | .80 |
1988 | .90 | .70 |
1989 | .90 | .90 |
1990 | .80 | .60 |
1991 | .70 | .60 |
1992 | .60 | .70 |
1994 | .80 | .40 |
1995 | .80 | .70 |
1996 | .70 | .50 |
1997 | .50 | .50 |
1998 | .70 | .60 |
1999 | .50 | .50 |
2000 | .60 | .60 |
2001 | .40 | .40 |
2002 | .60 | .60 |
2003 | .60 | .60 |
2004 | .50 | .50 |
2005 | .80 | .80 |
2006 | .40 | .40 |
2007 | .50 | .50 |
2008 | .60 | .60 |
2009 | .30 | .30 |
2010 | .30 | .30 |
2011 | .30 | .30 |
2012 | .30 | .30 |
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