Year	Number
1960	6292148
1961	6394847
1962	6512982
1963	6643581
1964	6787539
1965	6944329
1966	7114374
1967	7297828
1968	7494328
1969	7700103
1970	7908757
1971	8069335
1972	8236792
1973	8467605
1974	8710782
1975	8957806
1976	9218461
1977	9497335
1978	9791959
1979	10097435
1980	10387719
1981	10669122
1982	10965273
1983	11261253
1984	11557275
1985	11870448
1986	12194972
1987	12532970
1988	12860860
1989	13183145
1990	13521080
1991	13875267
1992	14240180
1993	14606972
1994	14964518
1995	15317779
1996	15682672
1997	16058460
1998	16455209
1999	16885477
2000	17338730
2001	17796269
2002	18264786
2003	18735851
2004	19205644
2005	19680323
2006	20168939
2007	20664814
2008	21166580
2009	21698465
2010	22277504
2011	22892459
2012	23508312
2013	24082692
2014	24645704
2015	25270279
2016	25975530
2017	26765273
2018	27651948
2019	28610421
2020	29505139
2021	30310506
2022	31175473
2023	32197818