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Loading...
| year | production | consumption |
| 1980 | .00 | .00 |
| 1981 | .00 | .00 |
| 1982 | .00 | .00 |
| 1983 | .00 | .00 |
| 1984 | .00 | .00 |
| 1985 | .00 | .00 |
| 1986 | .00 | .00 |
| 1987 | .00 | .00 |
| 1988 | .00 | .00 |
| 1989 | .00 | .00 |
| 1990 | .00 | .00 |
| 1991 | .00 | .00 |
| 1992 | .00 | .00 |
| 1993 | .00 | .00 |
| 1994 | .00 | .00 |
| 1995 | .24 | .24 |
| 1996 | .07 | .07 |
| 1997 | .56 | .56 |
| 1998 | .66 | .66 |
| 1999 | .92 | .92 |
| 2000 | 1.47 | 1.47 |
| 2001 | 1.32 | 1.32 |
| 2002 | 1.82 | 1.82 |
| 2003 | 2.56 | 2.56 |
| 2004 | 2.62 | 2.62 |
| 2005 | 3.06 | 3.06 |
| 2006 | 2.99 | 2.99 |
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