Year	Number
1996	45.226131439209
1998	45.5
2000	43.7810935974121
2002	45.7711448669434
2003	48.2587051391602
2004	47.5961532592773
2005	44.0191383361816
2006	30.6220092773438
2007	35.4067001342773
2008	38.9423065185547
2009	45.0236968994141
2010	44.0758285522461
2011	35.2112693786621
2012	22.0657272338867
2013	11.7370891571045
2014	11.5384616851807
2015	10.4761905670166
2016	4.7619047164917
2017	1.90476191043854
2018	2.85714292526245
2019	2.38095235824585
2020	2.85714292526245
2021	2.85714292526245
2022	2.8301887512207