Year	Number
1996	36.7021293640137
1998	38.2978706359863
2000	48.1481475830078
2002	54.4973526000977
2003	62.3115577697754
2004	55.8252410888672
2005	46.6019401550293
2006	32.3671493530273
2007	36.7149772644043
2008	36.538459777832
2009	40.7582931518555
2010	28.9099521636963
2011	18.9573459625244
2012	15.6398105621338
2013	9.00473976135254
2014	15.7142858505249
2015	12.8571424484253
2016	19.5238094329834
2017	14.2857141494751
2018	17.4528293609619
2019	23.1132068634033
2020	24.056604385376
2021	27.8301887512207
2022	30.6603775024414