Year	Number
1996	29.5698928833008
1998	19.786096572876
2000	27.1276588439941
2002	25.3968257904053
2003	29.6296291351318
2004	27.5862064361572
2005	39.5121955871582
2006	36.0975608825684
2007	32.5242729187012
2008	31.0679607391357
2009	21.0526313781738
2010	21.4285717010498
2011	20.3791465759277
2012	18.9573459625244
2013	16.5876770019531
2014	23.5576915740967
2015	22.380952835083
2016	31.4285717010498
2017	30
2018	26.6666660308838
2019	30.9523811340332
2020	29.5238094329834
2021	33.8095245361328
2022	40.5660362243652