1982 : 6285 products

1983 : 15736 products

1984 : 15991 products

1985 : 15812 products

1986 : 16197 products

1987 : 16685 products

1988 : 16728 products

1989 : 16312 products

1990 : 17129 products

1991 : 16794 products

1992 : 17092 products

1993 : 16878 products

1994 : 17125 products

1995 : 16998 products

1996 : 17212 products

1997 : 17189 products

1998 : 17196 products

1999 : 17109 products

2000 : 17114 products

2001 : 17208 products

2002 : 17195 products

2003 : 17130 products

2004 : 17193 products

2005 : 17103 products

2006 : 9344 products