Year	% of commercial profits
2005	33.1
2006	31.9
2007	32
2008	32.3
2009	29.2
2010	30.2
2011	29.9
2012	28.6
2013	30
2014	30
2015	30
2016	30
2017	29.9
2018	29.9
2019	29.9