Year	Number
1996	12.021858215332
1998	13.1147537231445
2000	9.28961753845215
2002	7.56756734848022
2003	14.5945949554443
2004	27.3631839752197
2005	20.0980396270752
2006	41.9512176513672
2007	48.0582542419434
2008	47.5728149414063
2009	48.3253593444824
2010	49.2822952270508
2011	55.4502372741699
2012	52.1327018737793
2013	54.028434753418
2014	52.8846168518066
2015	48.5714302062988
2016	53.8095245361328
2017	60.476188659668
2018	54.761905670166
2019	56.1904754638672
2020	61.4285697937012
2021	60
2022	61.3207550048828