Year	Number
1996	43.6170196533203
1998	46.8085098266602
2000	61.375659942627
2002	60.8465614318848
2003	59.7989959716797
2004	67.9611663818359
2005	74.271842956543
2006	69.5652160644531
2007	70.0483093261719
2008	69.711540222168
2009	63.9810409545898
2010	62.5592422485352
2011	62.0853080749512
2012	64.9289093017578
2013	63.9810409545898
2014	73.3333358764648
2015	67.1428604125977
2016	58.0952377319336
2017	61.9047622680664
2018	58.9622650146484
2019	23.5849056243896
2020	34.4339637756348
2021	41.5094337463379
2022	51.886791229248
