|
| year | production | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | 62.30 | NA |
| 1987 | 63.48 | 1.90 % |
| 1988 | 71.10 | 12.00 % |
| 1989 | 75.78 | 6.57 % |
| 1990 | 73.06 | -3.59 % |
| 1991 | 69.76 | -4.52 % |
| 1992 | 43.90 | -37.07 % |
| 1993 | 44.20 | 0.69 % |
| 1994 | 42.38 | -4.13 % |
| 1995 | 46.07 | 8.70 % |
| 1996 | 42.27 | -8.25 % |
| 1997 | 18.26 | -56.80 % |
| 1998 | 9.91 | -45.73 % |
| 1999 | 10.90 | 9.94 % |
| 2000 | 14.71 | 35.02 % |
| 2001 | 17.02 | 15.71 % |
| 2002 | 14.62 | -14.11 % |
| 2003 | 19.36 | 32.44 % |
| 2004 | 15.65 | -19.18 % |
| 2005 | 15.68 | 0.19 % |
| 2006 | 16.86 | 7.51 % |
| 2007 | 18.47 | 9.59 % |
| 2008 | 48.68 | 163.53 % |
| 2009 | 49.28 | 1.24 % |
| 2010 | 45.73 | -7.21 % |
|
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