Year	Number
1996	46.2311553955078
1998	55
2000	52.7363166809082
2002	57.2139320373535
2003	50.7462692260742
2004	53.8461532592773
2005	54.5454559326172
2006	49.2822952270508
2007	48.3253593444824
2008	47.1153831481934
2009	43.6018943786621
2010	41.7061614990234
2011	40.3755874633789
2012	46.948356628418
2013	47.8873252868652
2014	55.288459777832
2015	51.9047622680664
2016	51.4285697937012
2017	48.5714302062988
2018	45.7142868041992
2019	47.1428565979004
2020	41.9047622680664
2021	39.0476188659668
2022	42.9245300292969