Year	Number
1996	57.5
1998	64.6766204833984
2000	61.6915435791016
2002	52.7363166809082
2003	58.7064666748047
2004	58.1730766296387
2005	55.769229888916
2006	51.4423065185547
2007	50
2008	44.230770111084
2009	29.8578205108643
2010	29.3838863372803
2011	27.6995296478271
2012	26.7605628967285
2013	28.6384983062744
2014	37.4384231567383
2015	40.8866996765137
2016	41.8719215393066
2017	41.3793106079102
2018	39.8058242797852
2019	43.961353302002
2020	43.4782600402832
2021	43.961353302002
2022	42.512077331543