|
| year | production | change |
| 1980 | | NA |
| 1981 | | NA |
| 1982 | | NA |
| 1983 | | NA |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | .02 | NA |
| 1987 | .04 | 101.10 % |
| 1988 | .36 | 765.01 % |
| 1989 | .41 | 11.84 % |
| 1990 | .40 | -0.57 % |
| 1991 | .41 | 1.85 % |
| 1992 | .38 | -7.12 % |
| 1993 | .46 | 20.50 % |
| 1994 | .70 | 52.27 % |
| 1995 | .72 | 2.97 % |
| 1996 | .71 | -1.04 % |
| 1997 | .76 | 6.16 % |
| 1998 | .81 | 7.01 % |
| 1999 | .85 | 5.47 % |
| 2000 | .92 | 7.32 % |
| 2001 | .92 | 0.44 % |
| 2002 | .92 | -0.34 % |
| 2003 | .90 | -2.27 % |
| 2004 | .85 | -5.57 % |
| 2005 | .84 | -1.32 % |
| 2006 | .78 | -6.31 % |
| 2007 | .67 | -15.00 % |
| 2008 | .63 | -6.13 % |
| 2009 | .63 | 0.13 % |
| 2010 | .78 | 24.31 % |
|
|