Year	Number
2007	24.2718448638916
2008	19.9029121398926
2009	16.2679424285889
2010	15.7894735336304
2011	13.2701425552368
2012	10.9004735946655
2013	7.10900497436523
2014	8.65384578704834
2015	23.3333339691162
2016	28.5714282989502
2017	22.380952835083
2018	48.0952377319336
2019	47.6190490722656
2020	49.523811340332
2021	50
2022	53.301887512207