Year	%
2010	22.87470367165488
2011	22.939427592716964
2012	22.979969658652127
2013	23.01108870926252
2014	23.06216567231821
2015	23.08301998087244
2016	23.10107130767616
2017	23.130218879099505
2018	23.19817232659809
2019	23.247955074194202
2020	23.363986815064244
2021	21.9315850559153