|
| year | production | change |
| 1980 | 9,900.00 | NA |
| 1981 | 9,815.00 | -0.86 % |
| 1982 | 6,483.00 | -33.95 % |
| 1983 | 5,086.00 | -21.55 % |
| 1984 | 4,663.00 | -8.32 % |
| 1985 | 3,388.00 | -27.34 % |
| 1986 | 4,870.00 | 43.74 % |
| 1987 | 4,265.00 | -12.42 % |
| 1988 | 5,086.00 | 19.25 % |
| 1989 | 5,064.00 | -0.43 % |
| 1990 | 6,410.00 | 26.58 % |
| 1991 | 8,115.00 | 26.60 % |
| 1992 | 8,331.70 | 2.67 % |
| 1993 | 8,197.81 | -1.61 % |
| 1994 | 8,120.00 | -0.95 % |
| 1995 | 8,231.23 | 1.37 % |
| 1996 | 8,218.08 | -0.16 % |
| 1997 | 8,362.03 | 1.75 % |
| 1998 | 8,388.90 | 0.32 % |
| 1999 | 7,833.39 | -6.62 % |
| 2000 | 8,403.80 | 7.28 % |
| 2001 | 8,031.10 | -4.43 % |
| 2002 | 7,634.40 | -4.94 % |
| 2003 | 8,775.00 | 14.94 % |
| 2004 | 9,100.82 | 3.71 % |
| 2005 | 9,550.14 | 4.94 % |
| 2006 | 9,152.33 | -4.17 % |
| 2007 | 8,721.51 | -4.71 % |
| 2008 | 9,261.25 | 6.19 % |
| 2009 | 8,250.11 | -10.92 % |
| 2010 | 8,900.00 | 7.88 % |
| 2011 | 9,458.36 | 6.27 % |
| 2012 | 9,832.32 | 3.95 % |
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