Year	Number
1996	1.07526886463165
1998	19.786096572876
2000	13.8297872543335
2002	4.23280429840088
2003	31.2169303894043
2004	37.4384231567383
2005	50.2439041137695
2006	58.5365867614746
2007	53.3980598449707
2008	53.8834953308105
2009	54.5454559326172
2010	57.6190490722656
2011	61.1374397277832
2012	68.7203826904297
2013	69.1943130493164
2014	77.4038467407227
2015	75.2380981445313
2016	75.2380981445313
2017	76.6666641235352
2018	76.6666641235352
2019	76.1904754638672
2020	70.9523773193359
2021	74.2857131958008
2022	72.1698150634766