Year	%
2008	1.42549965541006
2009	2.03438434173328
2010	1.40635425755787
2011	1.06045560853893
2012	1.04262808908742
2013	0.866941606339939
2014	0.756532862271537
2015	0.92406290512104
2016	1.22253307180161
2017	1.40020092664899
2018	1.30951785160199
2019	1.30642223339991