Year	Number
1996	29.5698928833008
1998	27.807487487793
2000	27.1276588439941
2002	24.8677253723145
2003	28.0423278808594
2004	33.0049247741699
2005	33.1707305908203
2006	48.2926826477051
2007	47.0873794555664
2008	40.7766990661621
2009	39.7129173278809
2010	35.7142868041992
2011	33.6492881774902
2012	26.0663509368896
2013	22.748815536499
2014	25.480770111084
2015	27.1428565979004
2016	34.761905670166
2017	40
2018	38.5714302062988
2019	38.5714302062988
2020	39.0476188659668
2021	40
2022	43.3962249755859