Year	Number
1990	574888
1991	554994
1992	543467
1993	527368
1994	512186
1995	497062
1996	478755
1997	457823
1998	436439
1999	417145
2000	394820
2001	375763
2002	358159
2003	343885
2004	343361
2005	310107
2006	295022
2007	280295
2008	270110
2009	251217
2010	236601
2011	222162
2012	208229
2013	196914
2014	184046
2015	173263
2016	163169
2017	153848
2018	144744
2019	135872
2020	127947
2021	120824
2022	114830