|
| year | production | change |
| 1980 | 2,836.80 | NA |
| 1981 | 2,696.03 | -4.96 % |
| 1982 | 2,627.45 | -2.54 % |
| 1983 | 2,464.84 | -6.19 % |
| 1984 | 2,216.50 | -10.08 % |
| 1985 | 2,047.94 | -7.60 % |
| 1986 | 1,901.51 | -7.15 % |
| 1987 | 1,652.63 | -13.09 % |
| 1988 | 1,350.87 | -18.26 % |
| 1989 | 864.66 | -35.99 % |
| 1990 | 520.35 | -39.82 % |
| 1991 | 443.76 | -14.72 % |
| 1992 | 369.08 | -16.83 % |
| 1993 | 361.53 | -2.04 % |
| 1994 | 314.27 | -13.07 % |
| 1995 | 259.29 | -17.49 % |
| 1996 | 162.53 | -37.32 % |
| 1997 | 109.23 | -32.80 % |
| 1998 | 87.24 | -20.13 % |
| 1999 | 101.05 | 15.84 % |
| 2000 | 91.69 | -9.26 % |
| 2001 | | NA |
| 2002 | | NA |
| 2003 | | NA |
| 2004 | | NA |
| 2005 | | NA |
| 2006 | | NA |
| 2007 | | NA |
| 2008 | | NA |
| 2009 | | NA |
| 2010 | | NA |
| 2011 | | NA |
|
|
