Year	Number
1970	308552
2002	1401056
2003	1469950
2004	1570514
2005	1611582
2007	1262634
2008	1375114
2009	1377993
2010	1412582
2011	1431170
2012	1448245
2013	1441306
2014	1451313
2015	1428559
2016	1417859
2017	1382343
2018	1380391
2019	1367821
2020	1358341
2021	1369057