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year | production | consumption |
1992 | 1.90 | 4.10 |
1993 | 2.00 | 4.50 |
1994 | 1.60 | 5.10 |
1995 | 3.10 | 4.60 |
1996 | 2.10 | 4.70 |
1997 | 3.10 | 4.00 |
1998 | 1.40 | 3.10 |
1999 | 1.10 | 3.00 |
2000 | .70 | 2.20 |
2001 | .00 | 2.00 |
2002 | .00 | 1.40 |
2003 | .00 | 1.10 |
2004 | .00 | 1.00 |
2005 | .00 | 1.30 |
2006 | .00 | 1.40 |
2007 | .00 | 1.20 |
2008 | .00 | 1.50 |
2009 | .00 | .90 |
2010 | .00 | .50 |
2011 | .00 | .70 |
2012 | .00 | 1.10 |
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