|
| year | production | change |
| 1980 | | NA |
| 1981 | | NA |
| 1982 | | NA |
| 1983 | | NA |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | | NA |
| 1987 | | NA |
| 1988 | | NA |
| 1989 | | NA |
| 1990 | | NA |
| 1991 | | NA |
| 1992 | 3.64 | NA |
| 1993 | 3.26 | -10.45 % |
| 1994 | 2.61 | -20.00 % |
| 1995 | 2.33 | -10.84 % |
| 1996 | 2.41 | 3.61 % |
| 1997 | 2.47 | 2.59 % |
| 1998 | 2.43 | -1.77 % |
| 1999 | 2.63 | 8.16 % |
| 2000 | 3.38 | 28.81 % |
| 2001 | 3.69 | 8.98 % |
| 2002 | 3.98 | 8.06 % |
| 2003 | 4.16 | 4.48 % |
| 2004 | 4.65 | 11.77 % |
| 2005 | 4.86 | 4.56 % |
| 2006 | 5.13 | 5.55 % |
| 2007 | 5.28 | 2.87 % |
| 2008 | 5.55 | 5.08 % |
| 2009 | 5.57 | 0.37 % |
| 2010 | 5.82 | 4.52 % |
|
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