Year	Number
1996	38.5869560241699
1998	38.0434799194336
2000	44.0217399597168
2002	57.2972984313965
2003	56.7567558288574
2004	56.7164192199707
2005	51.470588684082
2006	54.4117660522461
2007	54.8543701171875
2008	53.3980598449707
2009	49.7607650756836
2010	47.3684196472168
2011	50.7108993530273
2012	55.4502372741699
2013	54.9763031005859
2014	53.3653831481934
2015	51.4285697937012
2016	49.0476188659668
2017	47.1428565979004
2018	43.8095245361328
2019	42.3809509277344
2020	38.5714302062988
2021	31.9047622680664
2022	32.5471687316895