Year	Number
1996	44.2211036682129
1998	45.5
2000	46.2686576843262
2002	45.7711448669434
2003	45.2736320495605
2004	44.230770111084
2005	50.2392349243164
2006	49.2822952270508
2007	46.8899536132813
2008	46.6346168518066
2009	45.971565246582
2010	45.971565246582
2011	48.3568077087402
2012	48.8262901306152
2013	48.3568077087402
2014	28.8461532592773
2015	45.7142868041992
2016	58.0952377319336
2017	54.761905670166
2018	48.0952377319336
2019	45.238094329834
2020	48.0952377319336
2021	52.8571434020996
2022	54.7169799804688