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year | production | consumption |
1986 | 1.70 | 1.70 |
1987 | 2.00 | .20 |
1988 | 2.50 | .20 |
1989 | .30 | .10 |
1990 | 3.90 | .30 |
1991 | 5.00 | .30 |
1992 | 6.00 | 2.80 |
1993 | 7.40 | 1.10 |
1994 | 1.10 | 1.10 |
1995 | 1.50 | .90 |
1996 | 1.20 | 1.20 |
1997 | 1.30 | .40 |
1998 | .40 | .40 |
1999 | .10 | .10 |
2000 | .20 | .20 |
2001 | .20 | .20 |
2002 | .20 | .20 |
2003 | .10 | .10 |
2004 | .20 | .20 |
2005 | .20 | .20 |
2006 | 1.60 | 1.60 |
2007 | 2.50 | 2.50 |
2008 | 1.70 | 1.70 |
2009 | 1.30 | 1.30 |
2010 | .60 | .60 |
2011 | .60 | .60 |
2012 | .60 | .60 |
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