Year	Number
1960	14163521
1961	14360388
1962	14560269
1963	14762931
1964	14968700
1965	15176758
1966	15388002
1967	15602185
1968	15819651
1969	16039538
1970	16191180
1971	16128515
1972	16066007
1973	16003912
1974	15941972
1975	15880271
1976	15818725
1977	15757586
1978	15696599
1979	15635849
1980	15601401
1981	15646170
1982	15691130
1983	15736220
1984	15781501
1985	15826788
1986	15872267
1987	15917876
1988	15963680
1989	16009490
1990	16085599
1991	16253492
1992	16423372
1993	16594553
1994	16767758.000000002
1995	16942770
1996	17119854
1997	17298295
1998	17478845
1999	17661279
2000	17813371
2001	17867738
2002	17922346
2003	17977121
2004	18032139
2005	18087174
2006	18142453
2007	18197900
2008	18253594
2009	18309304
2010	18365262
2011	18421391
2012	18477769
2013	18534163
2014	18590808
2015	18647626
2016	18704696
2017	18761941
2018	18819361
2019	18804722
2020	18803552
2021	18822570
2022	18866532
2023	18937269