Year	%
2012	3.45556340472652
2013	2.90140768348366
2014	2.16639379251709
2015	1.8448062230203
2016	1.6065430145001
2017	1.29067074436066
2018	1.21092611547297
2019	1.38801645888401
2020	1.47602162943813
2021	1.12523478748013