Year	Number
1996	0.703103303909302
1998	0.673875689506531
2000	0.687808454036713
2002	0.708452701568604
2003	0.724850833415985
2004	0.72966194152832
2005	0.54195910692215
2006	0.550342977046967
2007	0.657145261764526
2008	0.610481977462769
2009	0.571816921234131
2010	0.53067022562027
2011	0.300949603319168
2012	0.310884863138199
2013	0.32428964972496
2014	0.360036998987198
2015	0.295811653137207
2016	0.321833670139313
2017	0.323024958372116
2018	0.323131740093231
2019	0.322351813316345
2020	0.357103317975998
2021	0.363453030586243
2022	0.338811218738556