Year	% of expense
2010	7.034155130529037
2011	8.878137336336156
2012	19.22463520592184
2013	10.452769811155761
2014	11.878683813142384
2015	10.58650103226508
2016	7.674663472260132
2017	8.178792853447828
2018	8.41186328996272
2019	13.24420450041092
2020	12.88203917596056
2021	11.202104262587495
2022	10.974004884942307