Year	Number
1970	159580
1971	173709
1972	195664
1973	205425
1975	251074
1998	756213
1999	829759
2000	800107
2001	846804
2002	914919
2003	961699
2004	1010459
2005	1038195
2006	1043127
2007	1052014
2008	1059641
2009	1054878
2010	1135844
2011	1114449
2012	1153850
2013	1189580
2014	1208552
2015	1233875
2016	1243485
2017	1235538
2018	1233738
2019	1241569
2020	1247070
2021	1273021
2022	1276601