Year	Number
1996	20.7650279998779
1998	24.0437164306641
2000	25.1366119384766
2002	27.027027130127
2003	27.5675678253174
2004	23.8805961608887
2005	37.2549018859863
2006	35.6097564697266
2007	33.4951438903809
2008	35.9223289489746
2009	34.9282302856445
2010	36.3636360168457
2011	35.5450248718262
2012	33.1753540039063
2013	34.5971565246582
2014	40.3846168518066
2015	44.761905670166
2016	38.0952377319336
2017	38.0952377319336
2018	38.5714302062988
2019	38.0952377319336
2020	43.3333320617676
2021	45.7142868041992
2022	43.3962249755859