Year	%
2001	11.712596529743678
2002	10.026540438524508
2003	9.88482645918193
2004	9.393321905244692
2005	10.152582644912854
2006	10.300501592273314
2007	10.277299293237329
2008	9.906899644337642
2009	11.131471348251205
2010	9.71767499027093
2011	10.92967973887128
2012	11.268899895460539
2013	12.064409082889437
2014	10.6321815076282
2015	13.749293761425264
2016	14.7281749980364
2017	11.470187365385252
2018	9.007748478079456
2019	8.872497827777725
2020	10.113808318854472
2021	8.489644670515222
2022	7.493849491432675
2023	7.512732741800191