|
| year | production | change |
| 1984 | 8.05 | NA |
| 1985 | 7.82 | -2.96 % |
| 1986 | 9.06 | 15.88 % |
| 1987 | 8.10 | -10.56 % |
| 1988 | 9.41 | 16.18 % |
| 1989 | 11.47 | 21.87 % |
| 1990 | 11.51 | 0.31 % |
| 1991 | 10.01 | -13.00 % |
| 1992 | 11.60 | 15.88 % |
| 1993 | 11.09 | -4.38 % |
| 1994 | 15.93 | 43.57 % |
| 1995 | 13.29 | -16.57 % |
| 1996 | 12.10 | -8.91 % |
| 1997 | 12.14 | 0.30 % |
| 1998 | 13.03 | 7.36 % |
| 1999 | 10.81 | -17.07 % |
| 2000 | 8.75 | -19.08 % |
| 2001 | 12.11 | 38.43 % |
| 2002 | 10.61 | -12.33 % |
| 2003 | 12.30 | 15.88 % |
| 2004 | 11.51 | -6.45 % |
| 2005 | 12.18 | 5.82 % |
| 2006 | 12.65 | 3.87 % |
| 2007 | 11.44 | -9.53 % |
| 2008 | 12.14 | 6.13 % |
| 2009 | 9.86 | -18.82 % |
| 2010 | 10.84 | 9.92 % |
|
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