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year | production | consumption |
1992 | 1.80 | 4.80 |
1993 | 2.30 | 4.00 |
1994 | 2.00 | 2.80 |
1995 | .20 | 3.10 |
1996 | .00 | 7.00 |
1997 | .10 | 7.00 |
1999 | .10 | 10.00 |
2000 | .90 | 11.00 |
2001 | 5.60 | 7.70 |
2002 | .00 | 7.70 |
2003 | .00 | 7.60 |
2004 | .00 | 6.80 |
2005 | .00 | 7.30 |
2006 | .00 | 7.20 |
2007 | .00 | 7.40 |
2008 | .00 | 8.20 |
2009 | .00 | 8.20 |
2010 | .00 | 8.50 |
2011 | .00 | 9.30 |
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