Year	Number
1996	52.1276588439941
1998	36.7021293640137
2000	32.2751312255859
2002	25.3968257904053
2003	36.6834182739258
2004	41.262134552002
2005	39.8058242797852
2006	33.8164253234863
2007	34.2995185852051
2008	35.0961532592773
2009	28.9099521636963
2010	30.3317527770996
2011	36.4928894042969
2012	29.8578205108643
2013	35.5450248718262
2014	54.761905670166
2015	58.5714302062988
2016	61.9047622680664
2017	59.0476188659668
2018	55.6603775024414
2019	58.4905662536621
2020	58.4905662536621
2021	58.0188674926758
2022	58.4905662536621