Year	% of GDP
1981	15.629844849960381
1982	13.464068222797575
1983	12.144884207229367
1984	14.112649465072371
1985	11.388588656920188
1986	9.04247044181705
1987	10.318426447975398
1988	10.436289443528327
1989	13.972106190234786
1990	14.912140852265173
2013	9.639429252502032
2014	11.75606205040596
2015	15.468474371246288
2016	17.793399597132407
2017	16.2955854291412
2018	14.989939580425505
2019	15.415391328993744
2020	21.5594462198466
2021	20.013049199424458
2022	18.253751286565702
2023	18.687454593897147