|
| year | production | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | 3.87 | NA |
| 1987 | 8.91 | 130.59 % |
| 1988 | 2.52 | -71.78 % |
| 1989 | 3.25 | 29.15 % |
| 1990 | 5.60 | 72.37 % |
| 1991 | 5.23 | -6.61 % |
| 1992 | 7.84 | 49.88 % |
| 1993 | 11.76 | 50.01 % |
| 1994 | 7.98 | -32.16 % |
| 1995 | 10.71 | 34.23 % |
| 1996 | 11.55 | 7.91 % |
| 1997 | 13.08 | 13.23 % |
| 1998 | 13.65 | 4.35 % |
| 1999 | 18.54 | 35.77 % |
| 2000 | 25.02 | 34.98 % |
| 2001 | 26.27 | 4.97 % |
| 2002 | 26.89 | 2.38 % |
| 2003 | 27.89 | 3.73 % |
| 2004 | 36.32 | 30.20 % |
| 2005 | 41.18 | 13.39 % |
| 2006 | 80.27 | 94.93 % |
| 2007 | 35.85 | -55.34 % |
| 2008 | 35.28 | -1.60 % |
| 2009 | 22.09 | -37.37 % |
| 2010 | 100.77 | 356.06 % |
|
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