Year	Number
1982	34064
1983	39426
1984	41725
1985	43189
1986	47664
1987	49272
1988	52579
1989	57821
1990	63643
1991	68710
1992	76854
1993	88294
1994	97873
1995	105045
1996	113557
1997	116505
1998	124942
1999	131954
2000	138408
2001	147235
2002	162061
2003	169963
2004	180224.5
2005	187426
2006	171690
2007	182770
2008	195922
2009	210035
2010	209382
2011	199336
2012	164770
2013	147482
2014	132791
2015	126962
2016	116575
2017	120731
2018	82559
2019	91614
2020	89015
2021	92978