Year	Number
1991	1886906
1992	1910168
1993	1919159
1994	1955588
1995	2007611
1996	2045651
1997	2094150
1998	2139999
1999	2206892
2000	2312000
2001	2421316
2002	2526702
2003	2637516
2004	2773355
2005	2935072
2006	3114043
2007	3307335
2008	3507313
2009	3700563
2010	3937928
2011	4197824
2012	4403391
2013	4569432
2014	4553193
2015	4474603
2016	4347111
2017	4064670
2018	3899717
2019	3949889
2020	4036748
2021	4172935
2022	4319134
2023	4471289