Year	Number
1960	44329
1961	44777
1962	45236
1963	45712
1964	46200
1965	46681
1966	47148
1967	47590
1968	47999
1969	48362
1970	48913
1971	49754
1972	50655
1973	51529
1974	52368
1975	53158
1976	53919
1977	54659
1978	55373
1979	56084
1980	57200
1981	58825
1982	60538
1983	62202
1984	63819
1985	65410
1986	66997
1987	68585
1988	70168
1989	71646
1990	72873
1991	73897
1992	74846
1993	75754
1994	76621
1995	77450
1996	78230
1997	78977
1998	79710
1999	80445
2000	81191
2001	81879
2002	82448
2003	82900
2004	83243
2005	83485
2006	83629
2007	83676
2008	83648
2009	83559
2010	83691
2011	84025
2012	84350
2013	84636
2014	84833
2015	84996
2016	85126
2017	85205
2018	85186
2019	85102
2020	85317
2021	85879
2022	86446
2023	86992