Year	Number
1996	52.1276588439941
1998	57.4468078613281
2000	19.5767192840576
2002	31.2169303894043
2003	18.0904521942139
2004	13.1067962646484
2005	25.2427177429199
2006	13.5265703201294
2007	12.5603866577148
2008	10.0961542129517
2009	10.9004735946655
2010	11.8483409881592
2011	16.5876770019531
2012	20.3791465759277
2013	23.222749710083
2014	30
2015	26.1904754638672
2016	13.3333330154419
2017	17.1428565979004
2018	19.3396224975586
2019	25.4716987609863
2020	33.0188674926758
2021	24.056604385376
2022	33.4905662536621