Year	Number
1996	40
1998	41.7910461425781
2000	38.8059692382813
2002	41.7910461425781
2003	40.7960205078125
2004	50.480770111084
2005	45.6730766296387
2006	40.3846168518066
2007	39.9038467407227
2008	38.9423065185547
2009	40.7582931518555
2010	41.7061614990234
2011	39.4366188049316
2012	42.2535209655762
2013	41.7840385437012
2014	37.4384231567383
2015	40.8866996765137
2016	42.8571434020996
2017	42.8571434020996
2018	42.2330093383789
2019	49.7584533691406
2020	55.0724639892578
2021	58.4541053771973
2022	58.4541053771973