|
| year | production | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | 5.29 | NA |
| 1987 | 7.57 | 42.98 % |
| 1988 | 8.60 | 13.61 % |
| 1989 | 12.00 | 39.53 % |
| 1990 | 12.00 | 0.00 % |
| 1991 | 5.13 | -57.29 % |
| 1992 | 5.32 | 3.85 % |
| 1993 | 5.08 | -4.50 % |
| 1994 | 5.29 | 4.17 % |
| 1995 | 5.51 | 4.00 % |
| 1996 | 5.60 | 1.64 % |
| 1997 | 5.80 | 3.68 % |
| 1998 | 5.80 | 0.00 % |
| 1999 | 5.87 | 1.09 % |
| 2000 | 6.27 | 6.93 % |
| 2001 | 6.40 | 1.96 % |
| 2002 | 6.35 | -0.66 % |
| 2003 | 6.76 | 6.33 % |
| 2004 | 6.80 | 0.66 % |
| 2005 | 6.93 | 1.83 % |
| 2006 | 5.70 | -17.74 % |
| 2007 | 5.99 | 5.20 % |
| 2008 | 6.14 | 2.47 % |
| 2009 | 7.60 | 23.79 % |
| 2010 | 8.39 | 10.31 % |
|
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