Year	Number
1996	85.638298034668
1998	85.1063842773438
2000	91.0052947998047
2002	82.539680480957
2003	72.3618087768555
2004	77.1844635009766
2005	78.1553421020508
2006	72.4637680053711
2007	71.0144958496094
2008	72.5961532592773
2009	77.2511825561523
2010	83.8862533569336
2011	88.1516571044922
2012	90.5213241577148
2013	90.5213241577148
2014	79.0476226806641
2015	77.1428604125977
2016	80
2017	81.4285736083984
2018	76.4150924682617
2019	74.0566024780273
2020	73.1132049560547
2021	76.4150924682617
2022	79.2452850341797