Year	Number
2000	139000
2001	134000
2002	130000
2003	127000
2004	126000
2005	126000
2006	127000
2007	128000
2008	128000
2009	127000
2010	122000
2011	116000
2012	110000
2013	106000
2014	101000
2015	97000
2016	91000
2017	86000
2018	79000
2019	73000
2020	68000