Year	%
2009	3.01980960697869
2010	3.03446708520046
2011	2.09514417020733
2012	2.46477351436711
2013	3.78681968360645
2014	4.22925606627
2015	4.03779220172476
2016	3.69441187739961
2017	4.41640017238617
2018	3.66046491384932
2019	3.29905737050076
2020	4.19908433746564
2021	4.06516576680991
2022	4.31173023499467