Year	Number
1960	43534
1961	44445
1962	45471
1963	46591
1964	47791
1965	49080
1966	50459
1967	51928
1968	53476
1969	55089
1970	56753
1971	58461
1972	60222
1973	62065
1974	63930
1975	65743
1976	67525
1977	69249
1978	71004
1979	72932
1980	75048
1981	77334
1982	79787
1983	82378
1984	85111
1985	88056
1986	91272
1987	94724
1988	98332
1989	102090
1990	105989
1991	110007
1992	114105
1993	118238
1994	122348
1995	126381
1996	130294
1997	134050
1998	137687
1999	141302
2000	144909
2001	148555
2002	152324
2003	156109
2004	159790
2005	163337
2006	166754
2007	170093
2008	173456
2009	176898
2010	180438
2011	184010
2012	187246
2013	189799
2014	191378
2015	194090
2016	198629
2017	203272
2018	208014
2019	212879
2020	217120
2021	220129
2022	222811
2023	226684