Year	Total
1971	26570
1972	27600
1973	25450
1974	25280
1975	37060
1976	42990
1977	44710
1978	44710
1979	45140
1980	58810
1981	62170
1982	62510
1983	63540
1984	67240
1985	76100
1986	88910
1987	98970
1988	107700
1989	122000
1990	133200
1991	148400
1992	141900
1993	145900
1994	128900
1995	132300
1996	150300
1997	125400
1998	178700
1999	186200
2000	184200
2001	223700
2002	233900
2003	219200
2004	202700
2005	152900
2006	123500
2007	215900
2008	228200
2009	226100
2010	221300