Year Number of 1990 2019000 1991 2117000 1992 2126000 1993 2207000 1994 2511000 1995 2988000 1996 3036000 1997 2660000 1998 2223000 1999 2285000 2000 2032000 2001 2085000 2002 1841000 2003 1869000 2004 1915000 2005 1817000 2006 1785000