Year	Number
1996	19.680850982666
1998	19.680850982666
2000	29.100528717041
2002	26.4550266265869
2003	31.1557788848877
2004	32.5242729187012
2005	40.2912635803223
2006	38.6473426818848
2007	34.2995185852051
2008	26.9230766296387
2009	29.8578205108643
2010	22.748815536499
2011	26.5402851104736
2012	26.5402851104736
2013	27.488151550293
2014	12.380952835083
2015	15.2380952835083
2016	13.3333330154419
2017	12.380952835083
2018	8.49056625366211
2019	8.01886749267578
2020	9.90566062927246
2021	9.90566062927246
2022	10.8490562438965