Year	Number
1991	5211327
1992	5467076
1993	5636555
1994	5775354
1995	5926862
1996	6085542
1997	6257970
1998	6444044
1999	6656494
2000	7079451
2001	7333273
2002	7625337
2003	7948017
2004	8227971
2005	8558784
2006	8989951
2007	9448425
2008	9918243
2009	10384920
2010	11036836
2011	11614140
2012	12176429
2013	12635859
2014	12977992
2015	13441489
2016	13967604
2017	13926541
2018	14523667
2019	15485557
2020	15995144
2021	16336779
2022	16617140
2023	16933906