Year	Number
1996	80.6451644897461
1998	81.2834243774414
2000	82.4468078613281
2002	85.185188293457
2003	83.0687866210938
2004	84.7290649414063
2005	77.5609741210938
2006	73.6585388183594
2007	73.3009719848633
2008	73.7864074707031
2009	72.2488021850586
2010	71.9047622680664
2011	67.7725143432617
2012	60.1895751953125
2013	60.1895751953125
2014	57.211540222168
2015	55.7142868041992
2016	55.7142868041992
2017	52.3809509277344
2018	54.761905670166
2019	58.5714302062988
2020	60
2021	61.4285697937012
2022	66.0377349853516