Year	Number
1984	274876
1985	263172
1986	281920
1987	299360
1988	301810
1989	310655
1990	323652
1991	329308
1998	320194
1999	320998
2000	321101
2001	313985
2002	270122
2003	257437
2004	245243
2005	242165
2006	235167
2007	223958
2008	233903
2009	221975
2010	185783
2011	155316
2012	160234
2013	143455
2014	110646
2015	172422
2016	119685
2018	92136
2019	107695
2020	79884
2021	144387