Year	% of expense
2012	7.606656205534608
2013	1.0109278966722586
2014	1.0776888119454664
2015	1.344381499957724
2016	1.341944141575107
2017	0.0634460255596846
2018	0.21112743184752064
2019	0.40772328058569457
2020	0.6035405683164027
2021	0.4323446297495142