Year	% of GDP
1990	19.692447771763874
1995	20.681143347762315
1996	22.195205479452053
1997	20.325254698474975
1998	19.137740305558047
1999	18.81594542248432
2009	20.981077193037926
2010	23.245892054895688
2011	22.66120020317829
2012	22.74231357718179
2013	21.891019918540422
2014	23.032834733893555
2015	24.043196454799958
2016	25.55731386426151
2017	26.92893802232082
2018	25.62151225588457
2019	27.840880602140533
2020	34.039588674246396
2021	34.25811978216356