Year	Number
1996	53.2258071899414
1998	58.2887687683105
2000	47.8723411560059
2002	48.1481475830078
2003	45.5026473999023
2004	48.7684745788574
2005	41.9512176513672
2006	39.0243911743164
2007	42.2330093383789
2008	40.2912635803223
2009	43.5406684875488
2010	52.3809509277344
2011	40.2843589782715
2012	37.4407577514648
2013	41.7061614990234
2014	47.1153831481934
2015	48.0952377319336
2016	50.476188659668
2017	49.0476188659668
2018	44.761905670166
2019	41.4285697937012
2020	38.5714302062988
2021	38.5714302062988
2022	41.5094337463379