Year	Number
1996	57.9234962463379
1998	59.0163917541504
2000	59.5628433227539
2002	55.6756744384766
2003	55.6756744384766
2004	56.2189064025879
2005	53.4313735961914
2006	60.9756088256836
2007	60.6796112060547
2008	61.6504859924316
2009	61.7224884033203
2010	65.5502395629883
2011	57.3459701538086
2012	63.9810409545898
2013	65.8767776489258
2014	71.6346130371094
2015	71.4285736083984
2016	71.9047622680664
2017	72.3809509277344
2018	72.8571395874023
2019	72.3809509277344
2020	69.0476226806641
2021	76.6666641235352
2022	78.7735824584961