Year	Number
1996	43.6170196533203
1998	42.0212783813477
2000	42.8571434020996
2002	28.5714282989502
2003	47.7386932373047
2004	43.6893196105957
2005	35.9223289489746
2006	51.2077293395996
2007	52.6570053100586
2008	52.4038467407227
2009	57.3459701538086
2010	52.6066360473633
2011	51.1848335266113
2012	54.028434753418
2013	51.1848335266113
2014	30.4761905670166
2015	40
2016	40.476188659668
2017	39.523811340332
2018	42.9245300292969
2019	42.4528312683105
2020	39.6226425170898
2021	40.5660362243652
2022	43.3962249755859