Year	Number
1996	68.0851058959961
1998	73.9361724853516
2000	76.7195739746094
2002	82.539680480957
2003	71.8592987060547
2004	63.1067962646484
2005	64.5631103515625
2006	63.2850227355957
2007	59.4202880859375
2008	66.8269195556641
2009	57.8199043273926
2010	54.502368927002
2011	58.2938385009766
2012	59.7156410217285
2013	60.1895751953125
2014	61.9047622680664
2015	64.2857131958008
2016	65.7142868041992
2017	71.4285736083984
2018	70.7547149658203
2019	69.8113174438477
2020	67.4528274536133
2021	63.6792449951172
2022	60.8490562438965