|
| year | production | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | 5.85 | NA |
| 1987 | 5.12 | -12.45 % |
| 1988 | 4.58 | -10.50 % |
| 1989 | 5.11 | 11.48 % |
| 1990 | 4.85 | -5.10 % |
| 1991 | 4.78 | -1.43 % |
| 1992 | 5.48 | 14.73 % |
| 1993 | 6.46 | 17.71 % |
| 1994 | 5.73 | -11.22 % |
| 1995 | 4.74 | -17.22 % |
| 1996 | 4.68 | -1.44 % |
| 1997 | 5.05 | 7.97 % |
| 1998 | 4.87 | -3.59 % |
| 1999 | 9.43 | 93.81 % |
| 2000 | 9.41 | -0.27 % |
| 2001 | 9.89 | 5.17 % |
| 2002 | 9.68 | -2.16 % |
| 2003 | 9.42 | -2.73 % |
| 2004 | 9.42 | 0.00 % |
| 2005 | 10.77 | 14.35 % |
| 2006 | 10.52 | -2.27 % |
| 2007 | 4.20 | -60.13 % |
| 2008 | 4.20 | 0.00 % |
| 2009 | 3.94 | -6.13 % |
| 2010 | 14.80 | 275.89 % |
|
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