Year	Number
1996	33.8797798156738
1998	30.0546455383301
2000	4.37158489227295
2002	5.94594573974609
2003	2.70270276069641
2004	1.99004971981049
2005	0.490196079015732
2006	2.92682933807373
2007	2.42718458175659
2008	1.45631062984467
2009	3.82775115966797
2010	2.39234447479248
2011	4.7393364906311
2012	5.21327018737793
2013	10.9004735946655
2014	12.9807691574097
2015	13.8095235824585
2016	14.7619047164917
2017	11.9047622680664
2018	16.1904754638672
2019	18.0952377319336
2020	17.1428565979004
2021	17.619047164917
2022	27.3584899902344