Year	%
1997	11.1111111111111
1998	11.1111111111111
1999	11.1111111111111
2000	11.1111111111111
2001	9.84126984126984
2002	9.84126984126984
2003	11.4886731391586
2004	11.525974025974
2005	11.525974025974
2006	17.3015873015873
2007	17.3015873015873
2008	21.2698412698413
2009	21.2698412698413
2010	21.2698412698413
2011	21.5873015873016
2012	21.4285714285714
2013	31.4285714285714
2014	31.4285714285714
2015	30.952380952381
2016	30.952380952381
2017	30.952380952381
2018	35.7142857142857
2019	35.7142857142857
2020	35.7142857142857
2021	35.7142857142857
2022	32.25
2023	32.25