Year	% of GDP
2012	4.108786039048516
2013	3.5028068972538358
2014	3.3907772363255453
2015	4.0603816729702
2016	3.667539517058223
2017	3.5124149438307426
2018	3.752033896126296
2019	4.148839089144606
2020	7.001606379909037
2021	5.83522559983832