Year	Number
1996	37.2340431213379
1998	35.638298034668
2000	30.1587295532227
2002	33.3333320617676
2003	46.7336692810059
2004	60.1941757202148
2005	55.3398056030273
2006	56.038646697998
2007	53.6231880187988
2008	57.6923065185547
2009	48.8151664733887
2010	57.8199043273926
2011	68.2464447021484
2012	63.0331764221191
2013	65.8767776489258
2014	67.6190490722656
2015	66.1904754638672
2016	64.7619018554688
2017	71.4285736083984
2018	66.9811325073242
2019	66.0377349853516
2020	75.4716949462891
2021	77.3584899902344
2022	75.4716949462891