Year	Number
1996	48.2412071228027
1998	52
2000	47.7611923217773
2002	48.756217956543
2003	53.7313423156738
2004	47.5961532592773
2005	50.2392349243164
2006	45.9330139160156
2007	46.8899536132813
2008	52.4038467407227
2009	47.3933639526367
2010	46.9194297790527
2011	48.8262901306152
2012	49.2957763671875
2013	52.1126747131348
2014	49.038459777832
2015	47.6190490722656
2016	58.0952377319336
2017	55.238094329834
2018	55.238094329834
2019	54.761905670166
2020	55.238094329834
2021	55.238094329834
2022	54.7169799804688