Year	Number
1996	67.7595596313477
1998	75.4098358154297
2000	69.3989105224609
2002	61.0810813903809
2003	60.5405387878418
2004	62.1890563964844
2005	64.2156829833984
2006	65.8536605834961
2007	69.4174728393555
2008	67.4757308959961
2009	66.9856491088867
2010	67.464111328125
2011	66.8246459960938
2012	70.6161117553711
2013	70.1421813964844
2014	72.5961532592773
2015	71.9047622680664
2016	70.9523773193359
2017	65.2380981445313
2018	66.6666641235352
2019	69.0476226806641
2020	70.476188659668
2021	69.0476226806641
2022	61.7924537658691