Year	Number
1984	184400
1985	198900
1986	206600
1987	247000
1988	279000
1989	300000
1990	307000
1991	307000
1992	410000
1993	604100
1994	769400
1995	916200
1996	856900
1997	876800
1998	876800
1999	808000
2000	863547
2001	1007542
2002	1035795
2003	956133
2004	1079578
2005	977516
2006	1041478
2007	1017028
2008	1075754
2009	999375
2010	1263270
2011	1312935
2012	1044170
2013	1139784
2014	1061148
2015	1150003
2016	1168609
2017	1172201
2018	1234455
2019	1421313
2020	280622
2021	27881