|
| year | production | change |
| 1984 | 13.45 | NA |
| 1985 | 12.58 | -6.43 % |
| 1986 | 12.81 | 1.83 % |
| 1987 | 11.37 | -11.27 % |
| 1988 | 12.28 | 8.07 % |
| 1989 | 8.18 | -33.38 % |
| 1990 | 8.87 | 8.40 % |
| 1991 | 16.77 | 89.04 % |
| 1992 | 15.19 | -9.43 % |
| 1993 | 15.80 | 4.03 % |
| 1994 | 14.88 | -5.79 % |
| 1995 | 13.64 | -8.36 % |
| 1996 | 15.79 | 15.75 % |
| 1997 | 13.48 | -14.61 % |
| 1998 | 12.53 | -7.07 % |
| 1999 | 14.05 | 12.16 % |
| 2000 | 13.29 | -5.43 % |
| 2001 | 13.72 | 3.20 % |
| 2002 | 13.15 | -4.15 % |
| 2003 | 13.43 | 2.17 % |
| 2004 | 12.34 | -8.11 % |
| 2005 | 10.80 | -12.49 % |
| 2006 | 10.32 | -4.46 % |
| 2007 | 10.32 | 0.03 % |
| 2008 | 10.54 | 2.14 % |
| 2009 | 6.75 | -35.93 % |
| 2010 | 6.63 | -1.87 % |
|
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