Year	Number
1996	0.521090984344482
1998	0.282355040311813
2000	0.195348083972931
2002	0.393110811710358
2003	0.466075152158737
2004	0.458940267562866
2005	0.433445394039154
2006	0.449109822511673
2007	0.366876482963562
2008	0.247283861041069
2009	0.373885452747345
2010	0.39389044046402
2011	0.402631521224976
2012	0.379769444465637
2013	0.341402947902679
2014	0.524190723896027
2015	0.402314871549606
2016	0.387823909521103
2017	0.386965662240982
2018	0.529128134250641
2019	0.491362243890762
2020	0.572214603424072
2021	0.532973885536194
2022	0.561897993087769