Year	Number
1996	52.1739120483398
1998	49.4565200805664
2000	48.3695640563965
2002	40
2003	39.4594612121582
2004	37.8109436035156
2005	36.764705657959
2006	42.1568641662598
2007	46.1165046691895
2008	49.029125213623
2009	49.2822952270508
2010	49.2822952270508
2011	51.1848335266113
2012	49.2891006469727
2013	49.2891006469727
2014	52.8846168518066
2015	50
2016	49.0476188659668
2017	50.9523811340332
2018	51.4285697937012
2019	50.476188659668
2020	51.4285697937012
2021	52.3809509277344
2022	54.7169799804688