|
| year | production | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | 8.30 | NA |
| 1987 | 3.52 | -57.63 % |
| 1988 | 3.22 | -8.32 % |
| 1989 | 3.84 | 19.00 % |
| 1990 | 4.15 | 8.12 % |
| 1991 | 3.64 | -12.29 % |
| 1992 | 2.87 | -21.07 % |
| 1993 | 2.65 | -7.78 % |
| 1994 | 2.67 | 0.80 % |
| 1995 | 2.37 | -11.11 % |
| 1996 | 2.43 | 2.49 % |
| 1997 | 2.14 | -12.01 % |
| 1998 | 2.63 | 22.77 % |
| 1999 | 2.16 | -17.74 % |
| 2000 | 2.53 | 17.33 % |
| 2001 | 2.03 | -19.78 % |
| 2002 | 1.74 | -14.58 % |
| 2003 | 1.86 | 7.32 % |
| 2004 | 2.01 | 7.66 % |
| 2005 | 1.95 | -2.89 % |
| 2006 | 2.50 | 28.26 % |
| 2007 | 2.18 | -12.71 % |
| 2008 | 2.03 | -6.80 % |
| 2009 | 2.29 | 12.50 % |
| 2010 | 2.22 | -2.78 % |
|
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