Year	Number
1992	87635
1994	86181
1995	85713
1996	85399
1997	87663
1999	81364
2000	72300
2001	70734
2002	64578
2003	57866
2004	60820
2005	62568
2006	68759
2007	81369
2008	91955
2009	97050
2010	102010
2011	95627
2012	91746
2013	96256
2014	97318
2015	100610
2017	111997
2018	112609
2019	115626