Year	Number
1996	432000
1997	654000
1998	1146000
1999	1204000
2000	1326000
2001	1130000
2002	1141000
2003	1475000
2004	1473000
2005	1830000
2006	1836000
2007	1631000
2008	2162000
2009	2363000
2010	3176000
2011	3550000
2012	3874000
2013	4285000
2014	4244000
2015	4096000
2016	4282000
2017	4109000
2018	4908000
2019	5568000
2020	1165000