Year	Number
1996	33.6956520080566
1998	23.3695659637451
2000	34.2391319274902
2002	29.1891899108887
2003	34.0540542602539
2004	42.2885589599609
2005	33.8235282897949
2006	33.8235282897949
2007	37.3786392211914
2008	33.980583190918
2009	31.5789470672607
2010	35.4067001342773
2011	32.2274894714355
2012	31.2796211242676
2013	30.3317527770996
2014	31.25
2015	30
2016	38.5714302062988
2017	40.476188659668
2018	43.3333320617676
2019	44.761905670166
2020	42.3809509277344
2021	42.3809509277344
2022	40.5660362243652