|
| year | production | change |
| 1980 | .00 | NA |
| 1981 | .00 | 2.56 % |
| 1982 | .00 | 50.00 % |
| 1983 | .00 | -66.67 % |
| 1984 | .00 | 100.00 % |
| 1985 | .00 | 97.50 % |
| 1986 | .00 | 0.00 % |
| 1987 | .00 | 0.00 % |
| 1988 | .00 | -1.27 % |
| 1989 | .00 | 26.92 % |
| 1990 | .00 | 0.00 % |
| 1991 | .00 | 103.03 % |
| 1992 | .00 | -34.33 % |
| 1993 | .00 | 79.55 % |
| 1994 | .00 | -35.44 % |
| 1995 | .00 | 71.90 % |
| 1996 | .00 | -25.48 % |
| 1997 | .00 | -51.53 % |
| 1998 | .00 | 84.21 % |
| 1999 | .00 | 18.86 % |
| 2000 | .00 | -51.44 % |
| 2001 | .00 | -48.51 % |
| 2002 | .00 | 67.31 % |
| 2003 | .00 | 44.83 % |
| 2004 | .00 | -34.92 % |
| 2005 | .00 | -8.54 % |
| 2006 | .00 | 22.67 % |
| 2007 | .00 | 7.61 % |
| 2008 | .00 | -8.08 % |
| 2009 | .00 | 2.20 % |
| 2010 | .00 | 3.23 % |
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