Year	Number
1996	11.8279571533203
1998	6.41711235046387
2000	9.04255294799805
2002	23.280424118042
2003	39.1534385681152
2004	35.4679794311523
2005	42.4390258789063
2006	46.8292694091797
2007	45.1456298828125
2008	47.5728149414063
2009	48.3253593444824
2010	47.1428565979004
2011	49.2891006469727
2012	45.497631072998
2013	46.445499420166
2014	50.480770111084
2015	46.1904754638672
2016	42.3809509277344
2017	41.9047622680664
2018	40.476188659668
2019	37.6190490722656
2020	37.1428565979004
2021	35.7142868041992
2022	35.3773574829102