|
| year | production | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | 36.42 | NA |
| 1987 | 28.59 | -21.49 % |
| 1988 | 29.71 | 3.89 % |
| 1989 | 32.21 | 8.42 % |
| 1990 | 38.81 | 20.50 % |
| 1991 | 38.42 | -1.01 % |
| 1992 | 40.60 | 5.68 % |
| 1993 | 46.67 | 14.95 % |
| 1994 | 48.03 | 2.92 % |
| 1995 | 44.12 | -8.15 % |
| 1996 | 42.49 | -3.70 % |
| 1997 | 32.74 | -22.93 % |
| 1998 | 36.53 | 11.57 % |
| 1999 | 47.61 | 30.33 % |
| 2000 | 44.80 | -5.90 % |
| 2001 | 45.60 | 1.79 % |
| 2002 | 38.11 | -16.42 % |
| 2003 | 33.02 | -13.35 % |
| 2004 | 42.78 | 29.53 % |
| 2005 | 42.14 | -1.48 % |
| 2006 | 42.94 | 1.91 % |
| 2007 | 41.40 | -3.59 % |
| 2008 | 34.30 | -17.14 % |
| 2009 | 28.36 | -17.33 % |
| 2010 | 30.99 | 9.28 % |
|
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