Year	Number
1996	22.4043712615967
1998	25.6830596923828
2000	25.1366119384766
2002	23.7837829589844
2003	37.8378372192383
2004	38.3084564208984
2005	38.235294342041
2006	37.5609741210938
2007	42.7184448242188
2008	42.2330093383789
2009	32.0574150085449
2010	39.7129173278809
2011	42.1800956726074
2012	43.1279602050781
2013	45.0236968994141
2014	35.5769233703613
2015	35.7142868041992
2016	38.0952377319336
2017	33.8095245361328
2018	36.1904754638672
2019	38.5714302062988
2020	38.5714302062988
2021	36.1904754638672
2022	35.8490562438965