Year	%
2009	5.7331481422693
2010	5.50665495778595
2011	5.76404245185622
2012	6.87647533995024
2013	7.30901130458089
2014	8.01082856525825
2015	8.75347151376123
2016	9.09744069552396
2017	8.73106659616483
2018	10.3718693463432
2019	10.1869600177717
2020	9.6128254520664
2021	9.10789213254784
2022	8.99984288925682