Year	Number
1996	21.2765960693359
1998	18.0851058959961
2000	41.2698402404785
2002	29.6296291351318
2003	25.6281414031982
2004	34.4660186767578
2005	38.8349533081055
2006	29.9516906738281
2007	37.6811599731445
2008	29.8076915740967
2009	28.4360198974609
2010	36.0189590454102
2011	39.3364944458008
2012	36.9668235778809
2013	44.0758285522461
2014	45.7142868041992
2015	41.4285697937012
2016	48.0952377319336
2017	45.7142868041992
2018	43.8679237365723
2019	43.3962249755859
2020	47.1698112487793
2021	46.2264137268066
2022	44.3396224975586