Year	Number
1996	47.8723411560059
1998	61.1702117919922
2000	31.7460308074951
2002	41.798942565918
2003	39.6984939575195
2004	37.8640785217285
2005	34.4660186767578
2006	31.8840579986572
2007	42.512077331543
2008	35.5769233703613
2009	26.0663509368896
2010	33.1753540039063
2011	45.497631072998
2012	46.9194297790527
2013	45.971565246582
2014	39.0476188659668
2015	34.761905670166
2016	34.761905670166
2017	33.3333320617676
2018	31.1320762634277
2019	31.1320762634277
2020	34.9056587219238
2021	40.0943412780762
2022	22.1698112487793