Year	Number
1996	46.1956520080566
1998	41.847827911377
2000	38.5869560241699
2002	42.1621627807617
2003	44.8648643493652
2004	48.2587051391602
2005	43.1372566223145
2006	49.5098037719727
2007	51.4563102722168
2008	52.9126205444336
2009	55.0239219665527
2010	58.3732070922852
2011	59.7156410217285
2012	58.2938385009766
2013	59.7156410217285
2014	67.788459777832
2015	67.1428604125977
2016	65.7142868041992
2017	64.2857131958008
2018	67.1428604125977
2019	65.2380981445313
2020	64.7619018554688
2021	64.7619018554688
2022	68.3962249755859