Year	Number
1983	46460
1984	46948
1985	41883
1986	38560
1987	37704
1991	22437
1992	17604
1993	16493
1994	19370
1995	19613
1996	20990
1997	19052
2005	1038
2006	7764
2007	15868
2008	10759
2009	8776
2010	5826
2011	3545
2012	4267
2013	1170
2014	13537
2015	1703
2016	98
2017	714
2018	449
2019	1470
2020	1026
2021	562
2022	889.8740234375