Year	Number
1977	136031
1978	122097
1981	104799
1982	102458
1983	100801
1984	99053
1985	96472
1986	93138
1987	90178
1988	87683
1989	85494
1990	83403
1991	82626
1992	80895
1993	84720
1994	87462
1995	55106
1996	47383
1999	1889
2000	3123
2001	3388
2002	924
2003	1196
2004	692
2009	1850
2010	1684
2011	4576
2012	6515
2013	212
2014	59
2015	157
2016	425
2017	629
2018	661
2019	542
2020	713
2021	1236
2022	1399