Year	Number
2000	144000
2001	164000
2002	180000
2003	212000
2004	226000
2005	231000
2006	243000
2007	239000
2008	225000
2009	231000
2010	223000
2011	219000
2012	209000
2013	202000
2014	197000
2015	182000
2016	171000
2017	160000
2018	150000
2019	140000
2020	139000