Year	Number
1996	45.7286415100098
1998	48.5
2000	42.7860679626465
2002	52.2388076782227
2003	49.7512435913086
2004	45.1923065185547
2005	44.9760780334473
2006	45.9330139160156
2007	46.8899536132813
2008	50
2009	47.3933639526367
2010	46.445499420166
2011	48.3568077087402
2012	51.1737098693848
2013	52.582160949707
2014	57.6923065185547
2015	56.6666679382324
2016	52.3809509277344
2017	51.4285697937012
2018	50.476188659668
2019	45.7142868041992
2020	37.1428565979004
2021	39.0476188659668
2022	41.9811325073242