|
| year | production | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | 2.56 | NA |
| 1987 | 3.34 | 30.52 % |
| 1988 | 3.49 | 4.61 % |
| 1989 | 3.02 | -13.39 % |
| 1990 | 4.35 | 43.90 % |
| 1991 | 2.89 | -33.45 % |
| 1992 | 1.64 | -43.18 % |
| 1993 | 1.32 | -19.99 % |
| 1994 | 1.50 | 13.74 % |
| 1995 | 1.35 | -9.61 % |
| 1996 | 1.32 | -2.35 % |
| 1997 | 5.12 | 287.40 % |
| 1998 | 1.93 | -62.35 % |
| 1999 | 2.35 | 21.74 % |
| 2000 | 6.15 | 162.05 % |
| 2001 | 6.59 | 7.21 % |
| 2002 | 6.79 | 3.06 % |
| 2003 | 7.45 | 9.72 % |
| 2004 | 7.26 | -2.53 % |
| 2005 | 7.10 | -2.18 % |
| 2006 | 14.19 | 99.76 % |
| 2007 | 6.83 | -51.85 % |
| 2008 | 6.25 | -8.59 % |
| 2009 | 6.22 | -0.37 % |
| 2010 | 5.99 | -3.71 % |
|
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