Year	Number
1996	37.1584701538086
1998	42.0765037536621
2000	33.3333320617676
2002	36.2162170410156
2003	34.0540542602539
2004	23.8805961608887
2005	24.5098037719727
2006	28.7804870605469
2007	28.6407775878906
2008	29.6116504669189
2009	27.7511959075928
2010	28.2296657562256
2011	26.5402851104736
2012	25.1184825897217
2013	27.014217376709
2014	22.115385055542
2015	21.9047622680664
2016	29.0476188659668
2017	26.1904754638672
2018	23.8095245361328
2019	26.1904754638672
2020	25.7142848968506
2021	21.9047622680664
2022	16.5094337463379