Year	%
2012	9.92742756260372
2013	9.35397224610027
2014	8.64435559021165
2015	8.23684100594144
2016	7.92752471631559
2017	7.87198632346278
2018	8.03811869008349
2019	8.06577613962305
2020	7.82858252049211
2021	7.75674121847486
2022	7.85920663005895
2023	7.73563920961447