Year	Number
1996	80.6451644897461
1998	74.3315505981445
2000	72.8723373413086
2002	77.2486801147461
2003	75.1322784423828
2004	71.4285736083984
2005	70.7317047119141
2006	74.1463394165039
2007	74.271842956543
2008	77.1844635009766
2009	72.2488021850586
2010	72.3809509277344
2011	71.0900497436523
2012	79.1469192504883
2013	79.620849609375
2014	75.4807662963867
2015	74.7619018554688
2016	66.1904754638672
2017	66.6666641235352
2018	64.7619018554688
2019	62.3809509277344
2020	58.5714302062988
2021	58.0952377319336
2022	59.9056587219238