Year	Number
1996	27.8688526153564
1998	33.8797798156738
2000	38.7978134155273
2002	26.4864864349365
2003	41.0810813903809
2004	43.7810935974121
2005	43.6274528503418
2006	50.2439041137695
2007	45.1456298828125
2008	49.5145645141602
2009	52.6315803527832
2010	49.7607650756836
2011	49.7630348205566
2012	48.3412322998047
2013	45.0236968994141
2014	63.461540222168
2015	62.3809509277344
2016	61.4285697937012
2017	64.7619018554688
2018	64.7619018554688
2019	66.6666641235352
2020	68.5714263916016
2021	67.1428604125977
2022	69.3396224975586