Year	Number
1996	64
1998	61.6915435791016
2000	59.2039794921875
2002	61.1940307617188
2003	63.1840782165527
2004	61.538459777832
2005	61.538459777832
2006	59.1346168518066
2007	59.6153831481934
2008	60.0961532592773
2009	59.7156410217285
2010	60.1895751953125
2011	61.0328636169434
2012	61.0328636169434
2013	61.5023460388184
2014	60.0985221862793
2015	60.5911331176758
2016	61.5763549804688
2017	58.6206893920898
2018	58.2524261474609
2019	56.038646697998
2020	52.6570053100586
2021	50.7246360778809
2022	49.2753639221191