Year	Number of
2000	14000
2001	14000
2002	13000
2003	14000
2004	13000
2005	12000
2006	11000
2007	11000
2008	11000
2009	13000
2010	13000
2011	13000
2012	14000
2013	14000
2014	14000
2015	14000
2016	12000
2017	11000
2018	11000
2019	10000
2020	11000