Year	Number
1971	125321
1973	131792
1974	128024
1975	131501
1976	131676
1977	115802
1978	105657
1979	89361
1980	98781
1994	91809
1995	86871
1996	75519
1997	52716
1998	45047
1999	43664
2000	38391
2001	24507
2002	12110
2003	8930
2005	16613
2006	7329
2008	4294
2020	2765
2021	16652
2022	20907