Year	Number
1990	249451
1991	249288
1992	250506
1993	256446
1994	287915
1995	248511
1996	245840
1997	243720
1998	239769
1999	233164
2000	227983
2001	223220
2002	218642
2003	211722
2004	206783
2005	201888
2006	196966
2007	192303
2008	188955
2009	183611
2010	180550
2011	177790
2012	177281
2013	175452
2014	173094
2015	171672
2016	168359
2017	167960
2018	168285
2019	165475
2020	163854
2021	163797
2022	162552