Year	Number
1996	54.347827911377
1998	49.4565200805664
2000	44.0217399597168
2002	57.2972984313965
2003	57.8378372192383
2004	60.1990051269531
2005	56.3725471496582
2006	51.9607849121094
2007	55.3398056030273
2008	53.3980598449707
2009	53.1100463867188
2010	52.1531105041504
2011	52.1327018737793
2012	51.6587677001953
2013	51.6587677001953
2014	49.519229888916
2015	43.8095245361328
2016	48.5714302062988
2017	43.3333320617676
2018	43.8095245361328
2019	46.1904754638672
2020	45.238094329834
2021	46.1904754638672
2022	21.2264156341553