Year	Number
1996	36.6834182739258
1998	37.5
2000	14.9253730773926
2002	8.4577112197876
2003	8.4577112197876
2004	6.73076915740967
2005	3.34928226470947
2006	3.82775115966797
2007	1.91387557983398
2008	2.88461542129517
2009	1.42180097103119
2010	2.36966824531555
2011	1.877934217453
2012	4.22535228729248
2013	6.1032862663269
2014	7.21153831481934
2015	11.9047622680664
2016	10.9523811340332
2017	10.4761905670166
2018	14.2857141494751
2019	13.8095235824585
2020	12.8571424484253
2021	15.7142858505249
2022	17.9245281219482