Year	Number
1970	712300
1971	681000
1972	695500
1973	706800
1974	743800
1975	781500
1976	804400
1977	786700
1978	801600
1979	907000
1980	983000
1981	943200
1982	1056500
1983	1149700
1984	1188600
1985	1171500
1986	1192600
1987	1214500
1988	1198200
1989	1220900
1990	1231900
1991	1250000
1992	1287400
1993	1380200
1994	1442900
1995	1462700
1996	1532800
1997	1727100
1998	1806500
1999	1985500
2000	1838871
2001	1916893
2002	1756505
2003	1562182
2004	1584616
2005	1656212
2006	1695244
2007	1833458
2008	1800913
2009	1838212
2010	2303571.6876251074
2011	2431147.824056563
2012	2549816.1836156244
2013	2732986.415076939
2014	2840587.9966472397
2015	2898758
2016	2826420
2017	2748629
2018	2805821.29213874
2019	2826537.5831283564
2020	1285637.062
2021	1797138.537