Year	Number
1971	44756
1974	42336
1977	49229
1978	59161
1984	117004
1985	118422
1987	124445
1988	123153
1989	128140
1990	130558
1991	133882
1992	134087
1993	141632
1994	151008
2001	169402
2002	172948
2006	208812
2007	227929
2008	222799
2014	229937
2015	240005
2016	246711
2017	240251
2018	241484
2019	229313
2020	248235
2021	217707
2022	229081
2023	226399