Year	Number
1996	40.7035179138184
1998	50.5
2000	54.2288551330566
2002	57.2139320373535
2003	49.7512435913086
2004	47.5961532592773
2005	50.2392349243164
2006	40.6698570251465
2007	41.6267929077148
2008	43.75
2009	47.3933639526367
2010	49.7630348205566
2011	51.1737098693848
2012	51.1737098693848
2013	46.478874206543
2014	49.038459777832
2015	45.238094329834
2016	43.8095245361328
2017	37.6190490722656
2018	35.7142868041992
2019	33.8095245361328
2020	37.6190490722656
2021	37.6190490722656
2022	30.1886787414551