Year	Number
1971	97612
1972	102359
1973	112592
1974	125928
1975	143326
1976	164186
1977	185700
1978	209742
1979	231088
1980	248643
1981	266368
1982	281192
1983	295989
1984	311402
1985	332430
1986	335835
1987	345122
1988	357475
1989	366788
1990	384279
1991	409124
1992	438901
1993	458450
1994	484588
1996	534491
1999	579445
2000	583535
2002	606615
2003	613120
2004	615731
2005	625682
2006	649242
2007	670836
2008	700342
2010	709712
2011	719420
2012	724356
2013	731607
2014	749134
2017	763694
2018	789822
2019	832784
2020	880227
2021	945068
2022	990015