Year	%
1996	62.5759247648902
1997	63.231368861024
1998	56.9336572622779
1999	59.0114315569488
2000	56.4730303030303
2001	40.0918808777429
2002	35.8884535005225
2003	24.0508359456635
2004	23.3423898004309
2005	21.4988225662995
2006	23.0722114342722
2007	23.2185739270376
2008	25.9058333333333
2009	26.6529960866008
2010	23.7199692393219
2011	23.7789112384906
2012	22.9963340905902
2013	21.3243111079534
2014	20.1335217758898
2015	23.6301125786122
2016	24.5318680766991
2017	19.8191860496034
2018	19.5131820149386
2019	18.9967536717482
2020	17.0357659286485
2021	16.6226604984585
2022	18.6649646194159
2023	19.1058652071561