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Loading...
| year | production | consumption |
| 1993 | .00 | .00 |
| 1994 | .00 | .00 |
| 1995 | .00 | .00 |
| 1996 | .00 | .00 |
| 1997 | .00 | .00 |
| 1998 | .00 | .00 |
| 1999 | .00 | .00 |
| 2000 | .00 | .00 |
| 2001 | .00 | .00 |
| 2002 | .00 | .00 |
| 2003 | .00 | .00 |
| 2004 | .00 | .00 |
| 2005 | .00 | .00 |
| 2007 | .50 | .40 |
| 2008 | 1.60 | 1.10 |
| 2009 | 2.00 | 1.00 |
| 2010 | 2.00 | 1.00 |
| 2011 | 2.20 | 1.10 |
| 2012 | .90 | 1.10 |
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