Year	Number
1996	47
1998	52.2388076782227
2000	52.7363166809082
2002	54.2288551330566
2003	44.2786064147949
2004	40.8653831481934
2005	38.9423065185547
2006	46.1538467407227
2007	45.6730766296387
2008	44.711540222168
2009	44.5497627258301
2010	42.1800956726074
2011	48.3568077087402
2012	45.5399055480957
2013	44.6009407043457
2014	49.7536964416504
2015	47.7832527160645
2016	49.2610855102539
2017	47.7832527160645
2018	39.8058242797852
2019	51.2077293395996
2020	52.6570053100586
2021	51.6908226013184
2022	48.7922706604004