Year	% of GDP
1970	19.15050276589816
1971	19.494997962136694
1972	17.75970795386848
1973	18.888182808411358
1974	26.332827711490147
1975	24.075438852872917
1976	24.788258452790245
1977	23.127135880503392
1978	19.308241655635396
1979	22.652427720833078
1980	26.64936450482064
1981	27.046831592781047
1982	26.7229126893106
1983	24.51719281576151
1984	25.803500930353035
1985	24.11126123069267
1986	17.799091514937608
1987	16.788784616085277
1988	16.888514752467067
1989	18.541513741098072
1990	19.33571373292281
1991	17.759451254316836
1992	17.018068824018982
1993	15.723339130517516
1994	15.810306232275712
1995	16.390104934017234
1996	18.253868225552182
1997	19.78351762336688
1998	19.003186222337703
1999	18.125630716691106
2000	19.562371583905424
2001	19.55960447200707
2002	20.447122066158265
2003	21.32612526781185
2004	23.66435342289747
2005	26.229954577856496
2006	30.016376098669173
2007	32.816578051879006
2008	34.12947654122455
2009	24.390166533855524
2010	28.49847269383891
2011	30.194960728629617
2012	30.47091091717523
2013	33.97876865095107
2014	37.43143456865795
2015	35.42740835447983
2016	31.31024684558842
2017	34.42321357216859
2018	36.609931802107
2019	35.216418108414466
2020	31.325793124298595
2021	36.771483287046706
2022	46.84373213919134