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year | production | consumption |
1992 | .15 | .48 |
1993 | .14 | .39 |
1994 | .09 | .36 |
1995 | .12 | .38 |
1996 | .15 | .36 |
1997 | .13 | .36 |
1998 | .15 | .39 |
1999 | .11 | .30 |
2000 | .10 | .30 |
2001 | .14 | .32 |
2002 | .17 | .34 |
2003 | .18 | .35 |
2004 | .17 | .35 |
2005 | .12 | .35 |
2006 | .10 | .35 |
2007 | .11 | .38 |
2008 | .11 | .38 |
2009 | .12 | .32 |
2010 | .01 | .26 |
2011 | .01 | .27 |
2012 | .02 | .27 |
2013 | .02 | .31 |
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