1978 : 734 products

1979 : 7088 products

1980 : 5064 products

1981 : 6425 products

1982 : 9393 products

1983 : 8675 products

1984 : 6840 products

1985 : 4378 products

1986 : 5177 products

1987 : 9739 products

1988 : 9593 products

1989 : 9725 products

1990 : 9303 products

1991 : 9686 products

1992 : 9709 products

1993 : 9713 products

1994 : 9432 products

1995 : 11076 products

1996 : 9961 products

1997 : 12363 products

1998 : 14701 products

1999 : 10074 products

2000 : 9539 products

2001 : 15298 products

2002 : 17776 products

2003 : 20465 products

2004 : 20251 products

2005 : 22990 products

2006 : 24149 products

2007 : 25133 products

2008 : 25770 products

2009 : 26534 products

2010 : 25464 products

2011 : 25707 products

2012 : 25477 products

2013 : 26494 products

2014 : 22584 products

2015 : 20599 products

2016 : 20647 products

2017 : 20630 products

2018 : 21439 products

2019 : 25669 products

2020 : 25737 products