Year	Number
1990	4279547
1991	3825329
1992	4005764
1993	4230180
1994	4423480
1995	4410387
1996	4219795
1997	4243118
1998	4373377
1999	4487615
2000	4639911
2001	4942589
2002	5110716
2003	4932910
2004	5037899
2005	5106891
2006	6444699
2007	7513404
2008	7206298
2009	6955012
2010	6801874
2011	6657568
2012	6638833
2013	7794715
2014	8374963
2015	8279319
2016	8440080
2017	9061053
2018	9332911
2019	9349348
2020	9282118
2021	9373696
2022	9413234
2023	9195149