|
| year | production | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | 4.26 | NA |
| 1987 | 2.40 | -43.69 % |
| 1988 | 2.21 | -8.06 % |
| 1989 | 2.14 | -2.74 % |
| 1990 | 2.53 | 17.94 % |
| 1991 | 2.95 | 16.69 % |
| 1992 | 3.08 | 4.45 % |
| 1993 | 3.02 | -2.01 % |
| 1994 | 1.97 | -34.76 % |
| 1995 | 2.24 | 13.62 % |
| 1996 | 1.98 | -11.48 % |
| 1997 | 2.14 | 8.07 % |
| 1998 | 2.11 | -1.41 % |
| 1999 | 1.50 | -28.99 % |
| 2000 | 1.18 | -21.54 % |
| 2001 | 2.34 | 98.69 % |
| 2002 | 2.37 | 1.43 % |
| 2003 | 1.62 | -31.74 % |
| 2004 | 1.68 | 3.66 % |
| 2005 | 1.49 | -11.46 % |
| 2006 | 1.02 | -31.60 % |
| 2007 | 1.02 | 0.55 % |
| 2008 | 1.11 | 8.93 % |
| 2009 | 1.38 | 24.07 % |
| 2010 | 1.08 | -21.83 % |
|
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