Year	Number
1996	48.2412071228027
1998	49
2000	40.7960205078125
2002	45.7711448669434
2003	43.2835807800293
2004	36.538459777832
2005	32.0574150085449
2006	21.5311012268066
2007	16.7464122772217
2008	14.4230766296387
2009	14.2180099487305
2010	12.3222751617432
2011	12.6760559082031
2012	9.38967132568359
2013	10.3286380767822
2014	7.21153831481934
2015	7.14285707473755
2016	8.09523773193359
2017	8.09523773193359
2018	6.66666650772095
2019	6.1904764175415
2020	9.0476188659668
2021	7.61904764175415
2022	5.66037750244141