Year	Number
2009	62.2009582519531
2010	62.6794242858887
2011	62.5592422485352
2012	62.0853080749512
2013	61.1374397277832
2014	58.6538467407227
2015	57.1428565979004
2016	57.1428565979004
2017	55.238094329834
2018	55.7142868041992
2019	55.238094329834
2020	51.4285697937012
2021	50
2022	50.4716987609863