Year	Number
1996	34.1708526611328
1998	33.5
2000	84.5771179199219
2002	42.7860679626465
2003	54.7263679504395
2004	49.519229888916
2005	50.2392349243164
2006	27.2727279663086
2007	22.9665069580078
2008	25.480770111084
2009	17.5355453491211
2010	19.9052124023438
2011	18.3098583221436
2012	20.6572761535645
2013	17.3708915710449
2014	20.6730766296387
2015	21.4285717010498
2016	19.5238094329834
2017	20.4761905670166
2018	20
2019	21.9047622680664
2020	18.5714282989502
2021	23.8095245361328
2022	30.1886787414551