Year	%
1997	2.04841713221601
1998	2.04841713221601
1999	2.02578268876611
2000	7.69230769230769
2001	7.6782449725777
2002	7.6782449725777
2003	7.6782449725777
2004	7.6782449725777
2005	21.4285714285714
2006	21.9281663516068
2007	21.9281663516068
2008	21.9281663516068
2009	21.9281663516068
2010	27.7879341864717
2011	27.7879341864717
2012	27.7879341864717
2013	27.7879341864717
2014	27.7879341864717
2015	38.7568555758684
2016	38.7568555758684
2017	38.7568555758684
2018	38.7568555758684
2019	38.7568555758684
2020	38.7568555758684
2021	42.5882352941177
2022	41.4893617021277
2023	41.3135593220339