Year	Number
2002	25.9459457397461
2003	16.7567558288574
2004	28.8557205200195
2005	15.1960783004761
2006	8.78048801422119
2007	11.6504850387573
2008	13.5922327041626
2009	9.56937789916992
2010	8.13397121429443
2011	10.4265403747559
2012	10.4265403747559
2013	9.47867298126221
2014	11.057692527771
2015	12.8571424484253
2016	13.3333330154419
2017	15.2380952835083
2018	16.6666660308838
2019	17.619047164917
2020	22.380952835083
2021	24.761905670166
2022	22.6415100097656