Year	Number
2000	181000
2001	178000
2002	177000
2003	172000
2004	168000
2005	166000
2006	161000
2007	161000
2008	159000
2009	155000
2010	151000
2011	148000
2012	141000
2013	138000
2014	136000
2015	133000
2016	129000
2017	127000
2018	123000
2019	122000
2020	120000