Year	Number
1992	12446
1994	10713
1995	12424
1996	14212
1997	13088
1998	11064
1999	10387
2000	8079
2001	5988
2002	6350
2003	9610
2004	5921
2006	9240
2007	11412
2008	12484
2009	12869
2011	12491
2012	11336
2013	12888
2014	9767
2015	7006
2016	3579
2017	2482.65209960938
2018	1895.51293945312
2020	2169
2022	2908.83203125