Year	Number
1996	52.5
1998	55.7213935852051
2000	51.7412948608398
2002	51.7412948608398
2003	47.7611923217773
2004	46.6346168518066
2005	41.3461532592773
2006	46.6346168518066
2007	50
2008	49.519229888916
2009	44.5497627258301
2010	43.1279602050781
2011	42.2535209655762
2012	44.1314544677734
2013	44.6009407043457
2014	49.7536964416504
2015	49.2610855102539
2016	49.7536964416504
2017	48.7684745788574
2018	48.5436897277832
2019	50.7246360778809
2020	53.6231880187988
2021	51.2077293395996
2022	50.2415466308594