Year	Number
1996	46.7391319274902
1998	54.8913040161133
2000	53.2608680725098
2002	47.027027130127
2003	48.6486473083496
2004	54.2288551330566
2005	48.0392150878906
2006	52.4509811401367
2007	57.2815551757813
2008	57.2815551757813
2009	61.7224884033203
2010	62.6794242858887
2011	63.5071105957031
2012	57.8199043273926
2013	59.2417068481445
2014	61.0576934814453
2015	54.761905670166
2016	51.4285697937012
2017	45.7142868041992
2018	52.8571434020996
2019	50.9523811340332
2020	49.0476188659668
2021	39.523811340332
2022	34.9056587219238