Year	Number
1998	32000
1999	216000
2000	854655
2001	3835000
2002	9397426
2003	14917165
2004	19557146
2005	23301105
2006	26438867
2007	28303003
2008	30117679
2009	32863203
2010	34101778
2011	35696214
2012	36132405
2013	36918650
2014	37788929
2015	38872579
2016	39805586
2017	40532466
2018	41496293
2019	42502489
2020	44000791
2021	43629427
2022	44574788