|
| year | production | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | 4.18 | NA |
| 1987 | 4.42 | 5.63 % |
| 1988 | 3.99 | -9.70 % |
| 1989 | 4.16 | 4.37 % |
| 1990 | 4.35 | 4.49 % |
| 1991 | 5.23 | 20.34 % |
| 1992 | 5.51 | 5.22 % |
| 1993 | 6.24 | 13.24 % |
| 1994 | 6.69 | 7.24 % |
| 1995 | 4.34 | -35.16 % |
| 1996 | 2.11 | -51.34 % |
| 1997 | 2.49 | 18.16 % |
| 1998 | 2.99 | 19.84 % |
| 1999 | 3.95 | 32.16 % |
| 2000 | 3.22 | -18.35 % |
| 2001 | 3.22 | -0.25 % |
| 2002 | 3.09 | -3.93 % |
| 2003 | 3.81 | 23.15 % |
| 2004 | 4.06 | 6.59 % |
| 2005 | 3.99 | -1.63 % |
| 2006 | 3.52 | -11.79 % |
| 2007 | 4.68 | 33.00 % |
| 2008 | 3.80 | -18.78 % |
| 2009 | 4.03 | 6.00 % |
| 2010 | 2.70 | -32.97 % |
|
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