Year	Number
1996	60
1998	61.6915435791016
2000	56.2189064025879
2002	53.7313423156738
2003	63.1840782165527
2004	62.5
2005	63.9423065185547
2006	58.6538467407227
2007	57.211540222168
2008	55.288459777832
2009	55.4502372741699
2010	54.028434753418
2011	52.1126747131348
2012	53.521125793457
2013	51.6431922912598
2014	49.7536964416504
2015	50.2463035583496
2016	48.7684745788574
2017	46.305419921875
2018	43.2038841247559
2019	43.961353302002
2020	40.5797119140625
2021	42.512077331543
2022	42.0289840698242