Year	%
2007	2.29637920040576
2008	3.1090344283813
2009	4.33080924700152
2010	4.6936814254669
2011	6.37513416721368
2012	8.1867265178227
2013	9.21340777024835
2014	10.448048080803
2015	16.7400634913285
2016	16.5658132039701
2017	13.1873609272177
2018	9.42696352418473
2019	6.18151003441012
2020	4.8872570305011
2021	3.68197985762537
