Year	Number
1960	-20564
1961	-20143
1962	-23676
1963	-19321
1964	-19967
1965	-18112
1966	-15825
1967	-15646
1968	-20332
1969	-24738
1970	-71601
1971	-25735
1972	-28949
1973	-28055
1974	-26337
1975	-28852
1976	-29167
1977	-27206
1978	-48331
1979	-19290
1980	-12083
1981	-8982
1982	-20519
1983	-8333
1984	-5047
1985	-12963
1986	-20986
1987	-25496
1988	-98303
1989	-36389
1990	-41244
1991	-44836
1992	-43464
1993	-38654
1994	-36956
1995	-48065
1996	-38917
1997	-37561
1998	-39215
1999	-24652
2000	315602
2001	-21293
2002	-21339
2003	-22621
2004	-17064
2005	-21324
2006	-47251
2007	-29316
2008	-20946
2009	14220
2010	-8835
2011	-12188
2012	-12077
2013	-27597
2014	-24234
2015	-25426
2016	-1967
2017	-1983
2018	-8736
2019	-2974
2020	-779
2021	-2968
2022	3366387
2023	-910475