|
| year | production | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | 3.07 | NA |
| 1987 | 3.27 | 6.39 % |
| 1988 | 3.11 | -4.66 % |
| 1989 | 3.26 | 4.53 % |
| 1990 | 2.80 | -13.83 % |
| 1991 | 1.46 | -47.97 % |
| 1992 | 3.60 | 146.98 % |
| 1993 | 2.73 | -24.29 % |
| 1994 | 2.67 | -2.13 % |
| 1995 | 2.91 | 9.09 % |
| 1996 | 4.53 | 55.44 % |
| 1997 | 2.84 | -37.29 % |
| 1998 | 2.54 | -10.45 % |
| 1999 | 3.57 | 40.23 % |
| 2000 | 3.27 | -8.42 % |
| 2001 | 3.99 | 22.01 % |
| 2002 | 3.25 | -18.49 % |
| 2003 | 2.86 | -12.11 % |
| 2004 | 3.43 | 20.18 % |
| 2005 | 3.46 | 0.78 % |
| 2006 | 4.24 | 22.63 % |
| 2007 | 4.32 | 1.93 % |
| 2008 | 5.12 | 18.38 % |
| 2009 | 5.11 | -0.10 % |
| 2010 | 3.99 | -22.01 % |
|
|
