|
| year | production | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | 23.25 | NA |
| 1987 | 19.91 | -14.37 % |
| 1988 | 23.82 | 19.63 % |
| 1989 | 30.50 | 28.04 % |
| 1990 | 30.52 | 0.08 % |
| 1991 | 31.81 | 4.22 % |
| 1992 | 30.41 | -4.39 % |
| 1993 | 32.60 | 7.17 % |
| 1994 | 31.78 | -2.49 % |
| 1995 | 31.36 | -1.32 % |
| 1996 | 33.40 | 6.49 % |
| 1997 | 32.72 | -2.04 % |
| 1998 | 37.18 | 13.64 % |
| 1999 | 36.69 | -1.32 % |
| 2000 | 36.80 | 0.30 % |
| 2001 | 33.51 | -8.93 % |
| 2002 | 32.76 | -2.23 % |
| 2003 | 29.42 | -10.20 % |
| 2004 | 31.18 | 5.98 % |
| 2005 | 31.95 | 2.45 % |
| 2006 | 38.26 | 19.75 % |
| 2007 | 29.87 | -21.93 % |
| 2008 | 29.96 | 0.31 % |
| 2009 | 31.76 | 6.01 % |
| 2010 | 22.76 | -28.33 % |
|
|