Year	number
2006	272275
2007	295746
2008	299314
2009	263804
2010	210741
2011	178811
2012	243917
2013	253801
2014	252827
2015	357851
2016	375547
2017	397940
2018	401054
2019	417453
2020	490487
2021	472324
2022	434024