Year	Number
1996	11.4130430221558
1998	11.956521987915
2000	6.52173900604248
2002	3.24324321746826
2003	2.16216206550598
2004	0.995024859905243
2005	1.47058820724487
2006	2.45098042488098
2007	2.42718458175659
2008	2.42718458175659
2009	2.39234447479248
2010	2.39234447479248
2011	2.36966824531555
2012	5.21327018737793
2013	9.95260620117188
2014	12.5
2015	15.7142858505249
2016	30.4761905670166
2017	30.4761905670166
2018	35.238094329834
2019	34.761905670166
2020	41.4285697937012
2021	22.8571434020996
2022	20.2830181121826