|
| year | production | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | 12.99 | NA |
| 1987 | 14.16 | 8.99 % |
| 1988 | 12.23 | -13.62 % |
| 1989 | 13.93 | 13.90 % |
| 1990 | 14.80 | 6.19 % |
| 1991 | 10.76 | -27.30 % |
| 1992 | 15.15 | 40.83 % |
| 1993 | 18.33 | 20.98 % |
| 1994 | 17.94 | -2.10 % |
| 1995 | 19.01 | 5.96 % |
| 1996 | 19.43 | 2.22 % |
| 1997 | 19.50 | 0.35 % |
| 1998 | 23.80 | 22.04 % |
| 1999 | 23.52 | -1.19 % |
| 2000 | 28.25 | 20.11 % |
| 2001 | 26.25 | -7.08 % |
| 2002 | 25.35 | -3.42 % |
| 2003 | 24.88 | -1.83 % |
| 2004 | 26.58 | 6.81 % |
| 2005 | 27.91 | 5.02 % |
| 2006 | 26.53 | -4.96 % |
| 2007 | 22.92 | -13.61 % |
| 2008 | 18.10 | -21.02 % |
| 2009 | 17.75 | -1.95 % |
| 2010 | 20.62 | 16.19 % |
|
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