Year	Number
1971	14759
1972	16856
1973	19638
1974	22896
1976	31857
1977	12389
1978	12869
1979	18416
1980	22691
1981	103150
1982	102428
1983	100396
1984	100199
1985	94275
1986	88471
2007	86929
2021	130253
2023	115828