|
| year | production | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | 2.73 | NA |
| 1987 | 2.77 | 1.36 % |
| 1988 | 2.80 | 1.09 % |
| 1989 | 3.02 | 7.83 % |
| 1990 | 3.39 | 12.29 % |
| 1991 | 3.24 | -4.33 % |
| 1992 | 3.44 | 6.01 % |
| 1993 | 5.39 | 56.93 % |
| 1994 | 5.16 | -4.34 % |
| 1995 | 5.18 | 0.43 % |
| 1996 | 5.21 | 0.46 % |
| 1997 | 5.22 | 0.28 % |
| 1998 | 5.22 | 0.01 % |
| 1999 | 5.22 | 0.00 % |
| 2000 | 5.26 | 0.82 % |
| 2001 | 5.28 | 0.28 % |
| 2002 | 5.32 | 0.74 % |
| 2003 | 5.69 | 7.07 % |
| 2004 | 5.86 | 3.01 % |
| 2005 | 6.04 | 2.97 % |
| 2006 | 5.92 | -2.00 % |
| 2007 | 5.71 | -3.50 % |
| 2008 | 5.90 | 3.28 % |
| 2009 | 7.00 | 18.64 % |
| 2010 | 7.00 | 0.00 % |
|
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