Year	Number
1960	2775913
1961	2838198
1962	2901294
1963	2964747
1964	3029485
1965	3095568
1966	3160909
1967	3225825
1968	3290683
1969	3355573
1970	3379892
1971	3391257
1972	3442548
1973	3501198
1974	3547006
1975	3504525
1976	3348247
1977	3228543
1978	3198363
1979	3255563
1980	3334177
1981	3417502
1982	3545857
1983	3677619
1984	3804093
1985	3925641
1986	4065209
1987	4214473
1988	4356677
1989	4501727
1990	4660876
1991	4823655
1992	5024695
1993	5249118
1994	5427475
1995	5566038
1996	5695203
1997	5817046
1998	5938327
1999	6055381
2000	6162331
2001	6269097
2002	6378217
2003	6488659
2004	6600114
2005	6711926
2006	6824167
2007	6939365
2008	7050210
2009	7154373
2010	7258651
2011	7364277
2012	7471081
2013	7578172
2014	7684470
2015	7788391
2016	7892686
2017	7996341
2018	8094239
2019	8186482
2020	8281334
2021	8376956
2022	8468316
2023	8560264