Year	Number
1990	8726964
1991	8514010
1992	8253997
1993	8074479
1994	7942114
1995	7756389
1996	7581882
1997	7392664
1998	7200964
1999	7008707
2000	6846149
2001	6675547
2002	6478333
2003	6273733
2004	6091336
2005	5891854
2006	5711840
2007	5553624
2008	5420685
2009	5269688
2010	5133969
2011	4986868
2012	4861499
2013	4726107
2014	4579459
2015	4441550
2016	4324473
2017	4202747
2018	4080906
2019	3960567
2020	3841507
2021	3737323
2022	3646882