Year	% of GDP
1960	16.56748210922759
1961	12.872706658704583
1962	9.40416211624803
1963	8.747843191735033
1964	8.131796814722767
1965	3.4455579326652406
1966	4.929362740115866
1967	6.571318129107073
1968	5.365582429802614
1969	8.46810239739943
1970	9.166812797038045
1971	8.161937773777378
1972	16.341358357653217
1973	17.683679486523367
1974	13.993605270533552
1975	21.153771585352306
1976	15.43300280905985
1977	14.585977484685309
1978	13.052371367015894
1979	15.61404779224558
1980	10.906434280389867
1981	15.315645955060642
1982	11.04307351162397
1983	12.377642522178595
1984	9.601121209246163
1985	12.700835209975928
1986	16.02489689382308
1987	15.83749419289757
1988	20.830179848099725
1989	17.6344006722808
1990	15.37266129270059
1991	13.712946366047463
1992	11.933966877202378
1993	14.533905952326856
1994	16.263567169797934
1995	16.605020896247854
1996	17.185196118408687
1997	18.312743175362204
1998	20.777844183274283
1999	20.77222201793691
2000	19.5879193877958
2001	20.04131644336133
2002	19.68149308684543
2003	19.26565587486293
2004	21.57087899599713
2005	19.781788713037024
2006	19.6102214035497
2007	19.92820432935276
2008	16.44514244288515
2009	15.02305695143794
2010	15.731534276125977
2011	14.410540134978051
2012	15.073426388114616
2013	16.376227840682635
2014	17.919297555948333
2015	18.794232046837546
2016	19.204978153136505
2017	19.611089576202527
2018	20.842567139087507
2019	21.13224266840468
2020	17.68077415154101
2021	22.12262969467313
2022	23.17034435859638
2023	23.99930062074341