Year	Number
1960	-521336
1961	-517126
1962	-595656
1963	-708294
1964	-682278
1965	-796632
1966	-746373
1967	-775087
1968	-814784
1969	-783845
1970	-1052357
1971	-1118186
1972	-966328
1973	-983289
1974	-1080601
1975	-596916
1976	-142318
1977	-235954
1978	-1111853
1979	-760229
1980	-357689
1981	143952
1982	-794230
1983	-300218
1984	-585999
1985	-846280
1986	-723333
1987	-1046669
1988	-941187
1989	-1317990
1990	200789
1991	-2048619
1992	-2501588
1993	-2905873
1994	-1963826
1995	-1995641
1996	-1689673
1997	-1450851
1998	-1396343
1999	-1302691
2000	-1082195
2001	-1531221
2002	-2182468
2003	-1497969
2004	-1126372
2005	-1969526
2006	-2801593
2007	-3012199
2008	-1949803
2009	-1874131
2010	-935277
2011	-1118624
2012	541624
2013	1884737
2014	1715377
2015	1009204
2016	-497080
2017	-834208
2018	-1641911
2019	-1656943
2020	-195490
2021	-812359
2022	-2747421
2023	-1476459