Year	Number
1981	192100
1986	226300
1989	281500
1990	292600
1991	302400
1992	313300
1993	324300
1994	337200
1995	340200
1999	307460
2000	310043
2001	315439
2002	318366
2003	329692
2004	334461
2005	339315
2006	348445
2007	352001
2008	357560
2009	367224
2010	342064
2011	329168
2012	337652
2013	283382
2014	306761
2015	302586
2016	306569
2017	307968
2018	300075
2019	295201
2020	298876
2021	298010
2022	303736
2023	312964