Year	Number
1970	39839
1971	47345
1972	52325
1974	66411
1975	56705
1976	63115
1977	93330
1978	109390
1979	111534
1980	127293
1982	147990
1983	156665
1984	164453
1985	184112
1986	179444
1991	194083
1993	203192
2006	524367
2007	554297
2008	566938
2010	655294
2011	663115
2012	659558
2013	642654
2014	619832
2015	637727
2016	651807
2017	655090
2019	688235
2020	607709
2021	580903
2022	573892