Year	Number
1996	34.9726791381836
1998	36.6120223999023
2000	31.1475410461426
2002	26.4864864349365
2003	29.1891899108887
2004	30.8457717895508
2005	28.9215679168701
2006	31.2195129394531
2007	36.8932037353516
2008	31.0679607391357
2009	30.6220092773438
2010	34.9282302856445
2011	33.6492881774902
2012	35.5450248718262
2013	37.4407577514648
2014	40.8653831481934
2015	38.5714302062988
2016	37.1428565979004
2017	37.1428565979004
2018	34.2857131958008
2019	35.7142868041992
2020	38.0952377319336
2021	38.5714302062988
2022	41.0377349853516