Year	Number
1996	47.5
1998	49.7512435913086
2000	51.243782043457
2002	52.7363166809082
2003	52.2388076782227
2004	50
2005	48.0769233703613
2006	51.4423065185547
2007	50.480770111084
2008	50.961540222168
2009	49.7630348205566
2010	50.7108993530273
2011	50.7042236328125
2012	46.948356628418
2013	47.417839050293
2014	51.2315254211426
2015	51.7241363525391
2016	53.2019691467285
2017	52.2167472839355
2018	48.0582542419434
2019	50.7246360778809
2020	50.7246360778809
2021	45.4106292724609
2022	36.7149772644043