Year	Number
1996	40.4255332946777
1998	44.680850982666
2000	47.0899467468262
2002	49.2063484191895
2003	45.226131439209
2004	44.1747589111328
2005	35.4368934631348
2006	36.2318840026855
2007	43.961353302002
2008	41.3461532592773
2009	43.6018943786621
2010	43.1279602050781
2011	30.8056869506836
2012	34.5971565246582
2013	32.2274894714355
2014	29.0476188659668
2015	28.5714282989502
2016	27.619047164917
2017	35.238094329834
2018	33.0188674926758
2019	37.2641525268555
2020	46.698112487793
2021	33.9622650146484
2022	38.2075462341309