Year	Number
1960	11096527
1961	11282605
1962	11491080
1963	11686578
1964	11930424
1965	12234581
1966	12565591
1967	12900904
1968	13209747
1969	13499871
1970	13800110
1971	14100937
1972	14395792
1973	14677320
1974	14940184
1975	15178831
1976	15383796
1977	15599448
1978	15825618
1979	16017162
1980	16074889
1981	15938224
1982	15701726
1983	15436410
1984	15276589
1985	15386231
1986	15676438
1987	15985435
1988	16300233
1989	16627102
1990	16979454
1991	17374297
1992	17783267
1993	18221210
1994	18667274
1995	19134715
1996	19595059
1997	20018141
1998	20414613
1999	20836549
2000	21325601
2001	21845264
2002	22379161
2003	22902741
2004	23464501
2005	24069598
2006	24619215
2007	25055385
2008	25464892
2009	25890353
2010	26245843
2011	26550413
2012	27147792
2013	27837334
2014	28557396
2015	29220021
2016	29825533
2017	30385279
2018	30942508
2019	31471027
2020	31989002
2021	32438566
2022	33098511
2023	33935051