Year	Number
2003	52.7638206481934
2004	51.9417457580566
2005	47.5728149414063
2006	45.4106292724609
2007	42.9951705932617
2008	41.3461532592773
2009	61.6113739013672
2010	57.3459701538086
2011	48.8151664733887
2012	43.1279602050781
2013	48.8151664733887
2014	51.9047622680664
2015	62.3809509277344
2016	58.5714302062988
2017	64.2857131958008
2018	64.1509399414063
2019	70.7547149658203
2020	62.7358474731445
2021	62.2641525268555
2022	67.4528274536133