Year	Number
1996	48.2412071228027
1998	51
2000	50.2487564086914
2002	48.756217956543
2003	50.2487564086914
2004	47.5961532592773
2005	48.3253593444824
2006	48.3253593444824
2007	47.3684196472168
2008	48.5576934814453
2009	50.2369651794434
2010	53.0805702209473
2011	53.9906120300293
2012	53.521125793457
2013	53.051643371582
2014	51.4423065185547
2015	48.5714302062988
2016	48.0952377319336
2017	48.0952377319336
2018	51.4285697937012
2019	50.9523811340332
2020	48.5714302062988
2021	48.0952377319336
2022	48.113208770752