Year	Number
1996	5.52763795852661
1998	6
2000	7.46268653869629
2002	16.9154224395752
2003	17.412935256958
2004	21.1538467407227
2005	23.4449768066406
2006	30.1435413360596
2007	35.4067001342773
2008	38.461540222168
2009	36.9668235778809
2010	44.5497627258301
2011	46.478874206543
2012	48.3568077087402
2013	51.1737098693848
2014	61.538459777832
2015	58.5714302062988
2016	56.6666679382324
2017	58.0952377319336
2018	56.6666679382324
2019	54.761905670166
2020	54.761905670166
2021	56.1904754638672
2022	56.1320762634277