Year	Number
2003	21119000
2004	22054000
2005	26927000
2006	26936000
2007	27138000
2008	26870000
2009	26571000
2010	26730000
2011	25811000
2012	26402000
2013	26516000
2014	28070000
2015	28209000
2016	28692000
2017	30736000
2018	30801000
2019	33093000
2020	15595000