Year	Number
1996	43.5483856201172
1998	44.9197845458984
2000	45.2127647399902
2002	48.6772499084473
2003	51.8518524169922
2004	34.9753684997559
2005	28.7804870605469
2006	26.8292675018311
2007	28.1553401947021
2008	27.6699028015137
2009	34.4497604370117
2010	32.8571434020996
2011	37.4407577514648
2012	30.8056869506836
2013	27.488151550293
2014	28.365385055542
2015	23.3333339691162
2016	20
2017	29.5238094329834
2018	37.1428565979004
2019	39.523811340332
2020	38.0952377319336
2021	40.9523811340332
2022	46.2264137268066