Year	Number
1996	49.1803283691406
1998	45.9016380310059
2000	44.8087425231934
2002	53.5135116577148
2003	50.8108100891113
2004	51.243782043457
2005	48.0392150878906
2006	50.7317085266113
2007	52.4271850585938
2008	53.8834953308105
2009	50.2392349243164
2010	45.4545440673828
2011	45.497631072998
2012	46.9194297790527
2013	51.1848335266113
2014	59.6153831481934
2015	53.8095245361328
2016	54.2857131958008
2017	59.523811340332
2018	61.4285697937012
2019	66.6666641235352
2020	61.9047622680664
2021	58.5714302062988
2022	43.3962249755859