|
| year | production | change |
| 1984 | 15.62 | NA |
| 1985 | 14.66 | -6.11 % |
| 1986 | 14.81 | 1.03 % |
| 1987 | 19.21 | 29.65 % |
| 1988 | 16.27 | -15.31 % |
| 1989 | 26.68 | 64.03 % |
| 1990 | 19.87 | -25.54 % |
| 1991 | 24.65 | 24.08 % |
| 1992 | 27.17 | 10.25 % |
| 1993 | 25.87 | -4.81 % |
| 1994 | 28.10 | 8.62 % |
| 1995 | 28.41 | 1.12 % |
| 1996 | 28.67 | 0.90 % |
| 1997 | 31.21 | 8.86 % |
| 1998 | 33.06 | 5.94 % |
| 1999 | 33.52 | 1.39 % |
| 2000 | 30.05 | -10.37 % |
| 2001 | 29.11 | -3.13 % |
| 2002 | 26.56 | -8.74 % |
| 2003 | 30.06 | 13.16 % |
| 2004 | 32.50 | 8.12 % |
| 2005 | 28.47 | -12.41 % |
| 2006 | 34.73 | 21.99 % |
| 2007 | 36.56 | 5.29 % |
| 2008 | 41.73 | 14.13 % |
| 2009 | 36.00 | -13.74 % |
| 2010 | 33.69 | -6.42 % |
|
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