Year	Number
1996	3.27868843078613
1998	3.82513666152954
2000	4.37158489227295
2002	3.78378367424011
2003	2.16216206550598
2004	6.96517419815063
2005	8.82352924346924
2006	12.1951217651367
2007	7.28155326843262
2008	12.1359224319458
2009	13.8755979537964
2010	11.4832534790039
2011	13.2701425552368
2012	6.63507127761841
2013	13.7440757751465
2014	12.9807691574097
2015	9.5238094329834
2016	6.66666650772095
2017	7.61904764175415
2018	7.61904764175415
2019	8.09523773193359
2020	9.0476188659668
2021	8.5714282989502
2022	10.3773584365845