Year % of commercial profits 2005 6.622222222222222 2006 6.622222222222222 2007 6.409999999999999 2008 6.409999999999999 2009 6.529999999999999 2010 6.529999999999999 2011 7.2363636363636346 2012 7.199999999999999 2013 7.018181818181817 2014 7.127272727272726 2015 7.263636363636365 2016 7.263636363636365 2017 7.263636363636365 2018 7.372727272727274 2019 7.445454545454546