Year	Number
1973	755904
1974	768984
1977	784840
1978	790906
1981	813990
1986	905751
1989	1023128
1990	1053320
1991	1080298
1992	1143351
1997	1263152
1998	1295119
1999	1305724
2000	1337910
2001	1322766
2002	1310586
2003	1295576
2004	1280103
2005	1338195
2006	1371339
2007	1405670
2008	1382500
2009	1339465
2010	1281653
2011	1201117
2012	1211988
2013	1117725
2014	1158997
2015	1144529
2016	1146191
2017	1078179
2018	1577957
2019	1453769
2021	1607171
2022	1667236
2023	1841848