Year	Number
1996	60.1063842773438
1998	68.0851058959961
2000	62.4338607788086
2002	71.4285736083984
2003	68.3417053222656
2004	58.737865447998
2005	64.0776672363281
2006	63.7681159973145
2007	55.0724639892578
2008	55.288459777832
2009	49.2891006469727
2010	54.028434753418
2011	58.2938385009766
2012	57.3459701538086
2013	61.1374397277832
2014	58.5714302062988
2015	59.523811340332
2016	57.1428565979004
2017	62.3809509277344
2018	59.9056587219238
2019	59.4339637756348
2020	60.8490562438965
2021	58.4905662536621
2022	52.8301887512207