|
| year | production | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | 1.29 | NA |
| 1987 | 1.45 | 12.47 % |
| 1988 | 1.48 | 2.40 % |
| 1989 | 1.63 | 10.09 % |
| 1990 | 1.96 | 20.11 % |
| 1991 | 1.66 | -15.34 % |
| 1992 | 3.11 | 87.28 % |
| 1993 | .60 | -80.82 % |
| 1994 | | NA |
| 1995 | .96 | NA |
| 1996 | 1.17 | 21.97 % |
| 1997 | 2.00 | 70.72 % |
| 1998 | 2.72 | 36.23 % |
| 1999 | 2.27 | -16.52 % |
| 2000 | 2.62 | 15.51 % |
| 2001 | 2.72 | 3.67 % |
| 2002 | 2.04 | -24.99 % |
| 2003 | 2.14 | 5.01 % |
| 2004 | 2.79 | 30.04 % |
| 2005 | 2.92 | 4.82 % |
| 2006 | 2.50 | -14.33 % |
| 2007 | 2.07 | -17.41 % |
| 2008 | 2.88 | 39.23 % |
| 2009 | 3.17 | 10.26 % |
| 2010 | 2.60 | -17.99 % |
|
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