Year	Number
1996	27.4193553924561
1998	27.2727279663086
2000	27.659574508667
2002	25.9259262084961
2003	11.640212059021
2004	13.3004922866821
2005	16.0975608825684
2006	18.0487804412842
2007	17.9611644744873
2008	15.5339803695679
2009	11.9617223739624
2010	14.2857141494751
2011	12.7962083816528
2012	15.1658763885498
2013	12.3222751617432
2014	9.13461494445801
2015	10.9523811340332
2016	10.4761905670166
2017	11.4285717010498
2018	16.6666660308838
2019	24.761905670166
2020	27.1428565979004
2021	40.476188659668
2022	43.3962249755859