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Loading...
| year | production | consumption |
| 1980 | 62.00 | 62.00 |
| 1981 | 23.00 | 23.00 |
| 1982 | 24.00 | 24.00 |
| 1983 | 18.00 | 18.00 |
| 1984 | 20.00 | 20.00 |
| 1985 | 23.00 | 23.00 |
| 1986 | 45.00 | 27.00 |
| 1987 | 132.00 | 35.00 |
| 1988 | 202.00 | 88.00 |
| 1989 | 215.00 | 88.00 |
| 1990 | 148.00 | 77.00 |
| 1991 | 61.00 | 61.00 |
| 1992 | 101.00 | 101.00 |
| 1993 | 90.00 | 90.00 |
| 1994 | 112.00 | 112.00 |
| 1995 | 112.00 | 112.00 |
| 1996 | 114.00 | 114.00 |
| 1997 | 108.00 | 108.00 |
| 1998 | 104.00 | 104.00 |
| 1999 | 112.00 | 112.00 |
| 2000 | 111.00 | 111.00 |
| 2001 | 97.00 | 97.00 |
| 2002 | 83.00 | 83.00 |
| 2003 | 39.00 | 39.00 |
| 2004 | 62.00 | 62.00 |
| 2005 | 51.00 | 51.00 |
| 2006 | 64.00 | 64.00 |
| 2007 | 52.00 | 52.00 |
| 2008 | 66.00 | 66.00 |
| 2009 | 41.00 | 41.00 |
| 2010 | 46.00 | 46.00 |
| 2011 | 31.00 | 31.00 |
| 2012 | 23.00 | 23.00 |
| 2013 | 42.00 | 42.00 |
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