Year	% of GDP
1990	14.262109273286741
1991	15.154780920798935
1992	15.519982694286988
1993	9.780265096845765
1994	7.7953661317459915
1995	9.893541120553513
1998	12.937184346610605
1999	12.186066228110024
2012	15.869364793145916
2013	15.818702558009324
2014	16.33296161637434
2015	15.484900980488653
2016	14.518004931091378
2017	14.691664680823049
2018	15.150519920134498
2019	14.84792253206487
2020	13.121643021032398
2021	13.748459504675859