Year	Number
1991	3569407
1992	3652067
1993	3684501
1994	3851283
1995	3882088
1996	3852167
1997	3837968
1998	3877122
1999	3902046
2000	3901800
2001	3895879
2002	3973267
2003	4014293
2004	3973072
2005	4039517
2006	4106995
2007	4193552
2008	4236995
2009	4278874
2010	4294774
2011	4323161
2012	4371757
2013	4414478
2014	4438256
2015	4490374
2016	4573321
2017	4600302
2018	4638625
2019	4658940
2020	4641353
2021	4688653
2022	4761984
2023	4825387