Year	Number
1991	225451
1992	227193
1993	228990
1994	230014
1995	230542
1996	230818
1997	231047
1998	230932
1999	232812
2000	233207
2001	235232
2002	237081
2003	238747
2004	239452
2005	240065
2006	240240
2007	240744
2008	241322
2009	242945
2010	243784
2011	244506
2012	251895
2013	252989
2014	266788
2015	272361
2016	276767
2017	277876
2018	284888
2019	292098
2020	271119
2021	276234
2022	284490
2023	285512