Year	Number of
1990	1163000
1991	809000
1992	866000
1993	726700
1994	806200
1995	778200
1996	1163000
1997	978900
1998	872900
1999	815900
2000	646800
2001	1340000
2002	888300
2003	681800
2004	760700
2005	817700
2006	886500