Year	Number
1996	33.8709678649902
1998	20.8556156158447
2000	20.7446804046631
2002	39.1534385681152
2003	37.037036895752
2004	38.4236450195313
2005	32.6829261779785
2006	29.2682933807373
2007	25.2427177429199
2008	24.7572822570801
2009	25.3588523864746
2010	23.8095245361328
2011	24.1706161499023
2012	24.1706161499023
2013	26.0663509368896
2014	19.230770111084
2015	18.5714282989502
2016	18.0952377319336
2017	18.0952377319336
2018	14.2857141494751
2019	15.7142858505249
2020	11.4285717010498
2021	9.5238094329834
2022	7.54716968536377