Year	Number
1996	22.8723411560059
1998	29.7872333526611
2000	30.1587295532227
2002	31.7460308074951
2003	49.2462310791016
2004	32.5242729187012
2005	41.262134552002
2006	34.2995185852051
2007	39.613525390625
2008	47.1153831481934
2009	45.971565246582
2010	26.5402851104736
2011	29.8578205108643
2012	36.9668235778809
2013	35.5450248718262
2014	39.523811340332
2015	38.5714302062988
2016	38.0952377319336
2017	30
2018	46.2264137268066
2019	45.7547187805176
2020	10.8490562438965
2021	11.3207550048828
2022	12.7358493804932