Year	Number
1996	31.9148941040039
1998	33.5106391906738
2000	32.2751312255859
2002	31.7460308074951
2003	29.1457290649414
2004	23.3009700775146
2005	24.2718448638916
2006	39.613525390625
2007	23.6714973449707
2008	14.9038457870483
2009	11.3744077682495
2010	9.00473976135254
2011	5.21327018737793
2012	7.10900497436523
2013	7.5829381942749
2014	15.2380952835083
2015	15.2380952835083
2016	11.4285717010498
2017	13.8095235824585
2018	13.2075471878052
2019	14.6226415634155
2020	12.7358493804932
2021	16.9811325073242
2022	16.0377349853516