Year	Number of
1990	123800
1991	102900
1992	91000
1993	99200
1994	85010
1995	76920
1996	74880
1997	88030
1998	58870
1999	64680
2000	62440
2001	110200
2002	100200
2003	119700
2004	91860
2005	67040
2006	89110