Year	Number of
2000	712000
2001	698000
2002	686000
2003	667000
2004	643000
2005	635000
2006	622000
2007	622000
2008	591000
2009	573000
2010	549000
2011	537000
2012	527000
2013	518000
2014	485000
2015	470000
2016	458000
2017	456000
2018	452000
2019	445000
2020	504000