Year	Number
1989	127044
1991	157474
1992	154662
1993	165311
1994	167316
1995	168982
1996	172912
1997	175958
1998	173928
1999	177254
2000	173359
2001	171206
2002	176247
2003	164613
2004	157682
2005	161551
2006	156816
2007	153805
2008	151981
2009	150267
2010	146017
2011	137170
2012	134412
2013	130244
2014	131171
2015	129210
2016	125023
2017	124376
2018	123660
2019	122661
2020	123310
2021	124690