Year	% of expense
1992	5.63214705568024
1995	0.01841112031667127
1999	1.0202833304788237
2000	1.7069441758466304
2001	1.2367761715326446
2002	1.7543099450954078
2003	0.02998678017866806
2006	1.1821824453467185
2007	0.8154602004971652
2009	0.8937478990954791
2010	6.753874659150294
2011	5.969267113676015
2012	6.2021288949910405
2013	1.9342331373443968
2014	8.00862388541471
2015	3.6225871865483046
2016	0.19636734537752473
2017	1.1084901506379872