Year	Number
1996	74
1998	70.1492538452148
2000	67.6616897583008
2002	68.1592025756836
2003	68.1592025756836
2004	72.5961532592773
2005	65.8653869628906
2006	62.5
2007	61.538459777832
2008	61.538459777832
2009	58.7677726745605
2010	60.6635055541992
2011	60.0938949584961
2012	64.3192520141602
2013	63.8497657775879
2014	61.0837440490723
2015	61.5763549804688
2016	59.6059112548828
2017	59.1133003234863
2018	61.6504859924316
2019	62.8019332885742
2020	60.8695640563965
2021	59.9033813476563
2022	60.8695640563965