Year	Number
2004	62342
2005	68219
2006	77187
2007	88880
2008	88419
2009	76447
2010	135758
2011	152042
2012	161272
2013	165858
2014	176917
2015	200599
2016	228942
2017	265637
2018	275550
2019	294878
2020	405636