Year	Number
2009	68.4210510253906
2010	67.9425811767578
2011	67.2985763549805
2012	72.0379180908203
2013	72.0379180908203
2014	71.1538467407227
2015	70.9523773193359
2016	68.5714263916016
2017	70.476188659668
2018	70.476188659668
2019	71.9047622680664
2020	71.9047622680664
2021	68.0952377319336
2022	63.6792449951172