Year	Number
1996	71.2765960693359
1998	76.5957412719727
2000	88.3597869873047
2002	79.8941802978516
2003	71.8592987060547
2004	76.6990280151367
2005	70.3883514404297
2006	65.2173919677734
2007	70.5314025878906
2008	69.2307662963867
2009	63.9810409545898
2010	70.1421813964844
2011	70.6161117553711
2012	68.2464447021484
2013	67.7725143432617
2014	60.9523811340332
2015	58.0952377319336
2016	54.2857131958008
2017	55.238094329834
2018	52.3584899902344
2019	58.0188674926758
2020	57.0754699707031
2021	56.1320762634277
2022	59.9056587219238