Year	Number
1996	49.4623641967773
1998	41.7112312316895
2000	41.4893608093262
2002	36.5079383850098
2003	41.798942565918
2004	38.4236450195313
2005	40.9756088256836
2006	37.5609741210938
2007	37.8640785217285
2008	42.7184448242188
2009	38.2775115966797
2010	40.9523811340332
2011	43.1279602050781
2012	48.8151664733887
2013	48.8151664733887
2014	36.0576934814453
2015	41.4285697937012
2016	39.523811340332
2017	42.3809509277344
2018	39.523811340332
2019	46.1904754638672
2020	45.238094329834
2021	44.761905670166
2022	41.0377349853516