|
| year | production | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | 4.61 | NA |
| 1987 | 1.67 | -63.71 % |
| 1988 | 4.17 | 149.63 % |
| 1989 | 3.95 | -5.37 % |
| 1990 | 4.82 | 21.95 % |
| 1991 | 6.02 | 25.06 % |
| 1992 | 7.13 | 18.41 % |
| 1993 | 8.43 | 18.19 % |
| 1994 | 8.12 | -3.65 % |
| 1995 | 7.05 | -13.26 % |
| 1996 | 8.33 | 18.24 % |
| 1997 | 6.52 | -21.80 % |
| 1998 | 3.96 | -39.15 % |
| 1999 | 5.91 | 48.96 % |
| 2000 | 7.92 | 34.09 % |
| 2001 | 4.07 | -48.65 % |
| 2002 | 3.36 | -17.41 % |
| 2003 | 4.05 | 20.58 % |
| 2004 | 4.29 | 6.02 % |
| 2005 | 6.40 | 49.16 % |
| 2006 | 8.00 | 24.95 % |
| 2007 | 3.85 | -51.94 % |
| 2008 | 5.69 | 47.93 % |
| 2009 | 6.13 | 7.72 % |
| 2010 | 5.69 | -7.13 % |
|
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