|
| year | production | change |
| 1980 | 28,687.65 | NA |
| 1981 | 28,941.19 | 0.88 % |
| 1982 | 29,144.01 | 0.70 % |
| 1983 | 28,124.37 | -3.50 % |
| 1984 | 27,927.06 | -0.70 % |
| 1985 | 26,556.88 | -4.91 % |
| 1986 | 25,751.10 | -3.03 % |
| 1987 | 25,501.97 | -0.97 % |
| 1988 | 23,306.17 | -8.61 % |
| 1989 | 22,401.17 | -3.88 % |
| 1990 | 19,654.21 | -12.26 % |
| 1991 | 18,888.11 | -3.90 % |
| 1992 | 17,450.69 | -7.61 % |
| 1993 | 16,111.38 | -7.67 % |
| 1994 | 15,554.72 | -3.46 % |
| 1995 | 16,080.52 | 3.38 % |
| 1996 | 16,744.11 | 4.13 % |
| 1997 | 17,183.93 | 2.63 % |
| 1998 | 16,148.86 | -6.02 % |
| 1999 | 16,035.32 | -0.70 % |
| 2000 | 15,468.74 | -3.53 % |
| 2001 | 15,337.56 | -0.85 % |
| 2002 | 14,359.81 | -6.37 % |
| 2003 | 14,661.84 | 2.10 % |
| 2004 | 12,392.18 | -15.48 % |
| 2005 | 10,549.12 | -14.87 % |
| 2006 | 10,970.20 | 3.99 % |
| 2007 | 10,822.49 | -1.35 % |
| 2008 | 10,366.14 | -4.22 % |
| 2009 | 9,905.37 | -4.44 % |
| 2010 | 10,045.36 | 1.41 % |
| 2011 | 10,532.58 | 4.85 % |
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