Year	Number
1990	490780
1991	471192
1992	450885
1993	430999
1994	411425
1995	391621
1996	371651
1997	351815
1998	335724
1999	315716
2000	298708
2001	282107
2002	266019
2003	250625
2004	237546
2005	226250
2006	215269
2007	204840
2008	195461
2009	187506
2010	186708
2011	174148
2012	167947
2013	161796
2014	156540
2015	151747
2016	149408
2017	141153
2018	137118
2019	132094
2020	126585
2021	121496
2022	117092