Year	Number of
2000	41000
2001	35000
2002	33000
2003	30000
2004	28000
2005	26000
2006	22000
2007	21000
2008	20000
2009	18000
2010	16000
2011	16000
2012	16000
2013	16000
2014	15000
2015	15000
2016	13000
2017	13000
2018	12000
2019	11000
2020	12000