|
| year | production | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | 4.24 | NA |
| 1987 | | NA |
| 1988 | 4.65 | NA |
| 1989 | 5.63 | 21.25 % |
| 1990 | 6.84 | 21.41 % |
| 1991 | 6.93 | 1.23 % |
| 1992 | 6.76 | -2.40 % |
| 1993 | 7.84 | 15.94 % |
| 1994 | 8.37 | 6.76 % |
| 1995 | 10.80 | 29.11 % |
| 1996 | 9.78 | -9.46 % |
| 1997 | 9.54 | -2.43 % |
| 1998 | 12.71 | 33.19 % |
| 1999 | 11.56 | -9.00 % |
| 2000 | 17.30 | 49.59 % |
| 2001 | 12.81 | -25.93 % |
| 2002 | 12.30 | -3.97 % |
| 2003 | | NA |
| 2004 | 3.36 | NA |
| 2005 | 3.37 | 0.27 % |
| 2006 | 7.39 | 119.63 % |
| 2007 | 28.21 | 281.66 % |
| 2008 | | NA |
| 2009 | 12.30 | NA |
| 2010 | 28.61 | 132.53 % |
|
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