Year	Number
1990	194447
1991	190898
1992	187736
1993	185021
1994	183137
1995	182404
1996	182677
1997	183641
1998	184965
1999	186234
2000	186725
2001	186556
2002	185836
2003	184394
2004	182098
2005	179186
2006	175436
2007	171164
2008	166274
2009	160866
2010	155228
2011	149256
2012	142862
2013	136441
2014	130020
2015	123781
2016	117810
2017	112053
2018	106318
2019	100796
2020	95417
2021	90307
2022	85825