Year	Number
1960	224036
1961	231160
1962	238641
1963	246223
1964	253984
1965	262208
1966	270825
1967	279835
1968	289283
1969	299210
1970	309585
1971	320448
1972	331853
1973	343661
1974	355764
1975	367335
1976	378056
1977	388487
1978	398474
1979	407758
1980	416280
1981	424172
1982	431430
1983	437803
1984	446569
1985	458623
1986	471306
1987	484331
1988	497651
1989	511055
1990	524081
1991	537005
1992	550152
1993	563910
1994	578325
1995	592908
1996	607624
1997	621781
1998	636124
1999	650371
2000	665763
2001	682157
2002	697480
2003	714198
2004	733233
2005	754389
2006	777767
2007	803118
2008	830193
2009	861390
2010	895747
2011	929880
2012	963047
2013	994912
2014	1025857
2015	1055868
2016	1083941
2017	1109811
2018	1134533
2019	1157242
2020	1178097
2021	1197568
2022	1214589
2023	1228859