Year	Number
2007	349948
2008	519059
2009	985490
2010	1369943
2011	1889045
2012	2526901
2013	4208792
2014	6632849
2015	9159556
2016	11702075
2017	13573732
2018	15053882
2019	16805774
2020	20036133
2021	22601819
2022	20187972