Year	Number of
1990	106100
1991	107400
1992	109700
1993	112600
1994	115900
1995	119300
1996	123700
1997	129600
1998	120300
1999	124600
2000	125000
2001	132400
2002	126100
2003	131500
2004	136100
2005	141700
2006	147400
2007	154900