|
| year | production | change |
| 1980 | 17.00 | NA |
| 1981 | 17.00 | 0.00 % |
| 1982 | 20.00 | 17.65 % |
| 1983 | 25.00 | 25.00 % |
| 1984 | 25.00 | 0.00 % |
| 1985 | 27.00 | 8.00 % |
| 1986 | 24.00 | -11.11 % |
| 1987 | 25.00 | 4.17 % |
| 1988 | 35.00 | 40.00 % |
| 1989 | 45.00 | 28.57 % |
| 1990 | 40.00 | -11.11 % |
| 1991 | 45.00 | 12.50 % |
| 1992 | 14.00 | -68.89 % |
| 1993 | 18.00 | 28.57 % |
| 1994 | 18.00 | 0.00 % |
| 1995 | 19.00 | 5.56 % |
| 1996 | 21.00 | 10.53 % |
| 1997 | 23.00 | 9.52 % |
| 1998 | 24.00 | 4.35 % |
| 1999 | 30.29 | 26.21 % |
| 2000 | 35.11 | 15.91 % |
| 2001 | 38.74 | 10.34 % |
| 2002 | 35.57 | -8.18 % |
| 2003 | 36.98 | 3.96 % |
| 2004 | 34.75 | -6.03 % |
| 2005 | 37.98 | 9.29 % |
| 2006 | 36.02 | -5.16 % |
|
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