Year	Number
1995	28000
1996	37000
1997	45000
1998	52000
1999	67000
2000	115000
2001	134000
2002	126000
2003	150000
2004	157000
2005	198000
2006	242000
2007	267000
2008	285000
2009	287000
2010	336000
2011	428000
2012	482000
2013	503000
2014	494000
2015	520000
2016	598000
2017	668000
2018	710000
2019	758000
2020	180000