|
| year | production | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | | NA |
| 1987 | 39.24 | NA |
| 1988 | 26.77 | -31.77 % |
| 1989 | 25.85 | -3.45 % |
| 1990 | 45.19 | 74.83 % |
| 1991 | 54.86 | 21.40 % |
| 1992 | 42.83 | -21.93 % |
| 1993 | 86.34 | 101.60 % |
| 1994 | 63.54 | -26.41 % |
| 1995 | 27.70 | -56.40 % |
| 1996 | 28.29 | 2.11 % |
| 1997 | 26.03 | -7.99 % |
| 1998 | 20.55 | -21.05 % |
| 1999 | 17.81 | -13.33 % |
| 2000 | 18.58 | 4.34 % |
| 2001 | 2.03 | -89.09 % |
| 2002 | 5.23 | 157.84 % |
| 2003 | 16.70 | 219.55 % |
| 2004 | 19.52 | 16.87 % |
| 2005 | 19.58 | 0.27 % |
| 2006 | 20.45 | 4.45 % |
| 2007 | 19.10 | -6.61 % |
| 2008 | 9.13 | -52.19 % |
| 2009 | 9.76 | 6.95 % |
| 2010 | | NA |
|
|