Year	Number
1991	4313060
1992	4502225
1993	4698567
1994	4899754
1995	5104826
1996	5319302
1997	5532659
1998	5730465
1999	5891255
2000	6020615
2001	6137014
2002	6264404
2003	6414848
2004	6577439
2005	6748108
2006	6923835
2007	7104515
2008	7289697
2009	7478860
2010	7674193
2011	7842038
2012	7988446
2013	8151021
2014	8360975
2015	8617882
2016	8883562
2017	9157647
2018	9441715
2019	9735200
2020	9943686
2021	10263449
2022	10609451
2023	10954094