Year	Number
1991	4647361
1992	4660189
1993	4675859
1994	4697022
1995	4719506
1996	4716201
1997	4702916
1998	4710349
1999	4735445
2000	4799823
2001	4854143
2002	4894315
2003	4922877
2004	4945457
2005	4965796
2006	4986812
2007	5013841
2008	5042776
2009	5069441
2010	5088243
2011	5101163
2012	5108408
2013	5112243
2014	5116472
2015	5123402
2016	5126557
2017	5119698
2018	5099979
2019	5079798
2020	5044592
2021	5014861
2022	4993525
2023	4956149