Year	Number
1996	71.2765960693359
1998	78.7234039306641
2000	75.1322784423828
2002	75.661376953125
2003	63.8190956115723
2004	63.1067962646484
2005	55.3398056030273
2006	56.5217399597168
2007	56.5217399597168
2008	55.288459777832
2009	61.6113739013672
2010	54.028434753418
2011	59.2417068481445
2012	52.1327018737793
2013	55.4502372741699
2014	62.8571434020996
2015	68.0952377319336
2016	71.4285736083984
2017	70.476188659668
2018	65.0943374633789
2019	68.8679275512695
2020	66.9811325073242
2021	67.9245300292969
2022	69.8113174438477