Year	%
1997	17.568962380312566
1998	17.138565062607462
1999	9.81496970344474
2000	6.651056779943774
2001	6.923638421610152
2002	15.36571739670482
2003	20.310519839394768
2004	15.389052946558197
2005	11.307183626812076
2006	10.329285233890939
2007	11.244856121559433
2008	12.51245370072195
2009	13.998325815725687
2010	8.00540705848522
2011	16.366889793891747
2012	13.218585980085775
2013	12.396893103165722
2014	13.564750096958196
2015	7.291755357712802
2016	8.037660793520358
2017	18.40940395687284
2018	18.486625351416208
2019	13.64253842286959
2020	13.47592816549834
2021	13.02346041392978
2022	12.906261819909544
2023	15.854990546819817