Year	% of GDP
2012	28.80736840915973
2013	28.75146954289582
2014	30.73268561447292
2015	28.603195684526433
2016	24.98845965252016
2017	24.418971534935284
2018	25.953552144676507
2019	26.933288659343745
2020	29.800833192021265
2021	35.07982478880201