Year	Number
1996	57.7889442443848
1998	64
2000	62.6865653991699
2002	63.1840782165527
2003	59.7014923095703
2004	59.6153831481934
2005	57.8947372436523
2006	53.5885162353516
2007	53.5885162353516
2008	53.3653831481934
2009	49.7630348205566
2010	49.7630348205566
2011	48.3568077087402
2012	52.582160949707
2013	53.9906120300293
2014	62.019229888916
2015	58.5714302062988
2016	58.0952377319336
2017	55.7142868041992
2018	53.8095245361328
2019	52.8571434020996
2020	51.4285697937012
2021	47.1428565979004
2022	53.301887512207