Year	Number
1996	73.6559143066406
1998	78.0748672485352
2000	69.6808547973633
2002	71.9576721191406
2003	74.0740737915039
2004	75.3694610595703
2005	72.1951217651367
2006	76.5853652954102
2007	74.271842956543
2008	73.7864074707031
2009	74.6411514282227
2010	72.8571395874023
2011	72.511848449707
2012	72.511848449707
2013	69.6682434082031
2014	69.2307662963867
2015	67.1428604125977
2016	67.6190490722656
2017	69.0476226806641
2018	72.8571395874023
2019	72.3809509277344
2020	68.5714263916016
2021	65.7142868041992
2022	68.8679275512695