Year	Number
2004	71.4285736083984
2005	72.6829299926758
2006	72.1951217651367
2007	72.8155364990234
2008	73.3009719848633
2009	72.7272720336914
2010	72.3809509277344
2011	72.511848449707
2012	72.511848449707
2013	71.5639801025391
2014	69.2307662963867
2015	76.1904754638672
2016	75.2380981445313
2017	78.0952377319336
2018	77.1428604125977
2019	75.2380981445313
2020	77.1428604125977
2021	62.8571434020996
2022	60.8490562438965