Year	% of GDP
1965	64.58407648311454
1966	68.69300568264566
1967	66.23538322314289
1968	67.39160414354932
1969	66.4245468556612
1970	66.86815807481752
1971	66.83821696852912
1972	67.84646087968133
1973	65.33252722108426
1974	68.41817724930424
1975	69.00609461114108
1976	66.08600762381285
1977	60.12152893518519
1978	58.86884010262152
1979	60.162053296592156
1980	57.899021793457315
1981	56.79862201485789
1982	57.16728978100658
1983	56.52251303317536
1984	57.29880912843179
1985	48.858026016399776
1986	48.69715024047089
1987	47.95033195540523
1988	47.792109848386346
1989	47.68956748703357
1990	48.8028931693355
1991	44.72338672547072
1992	42.66526273881179
1993	39.89594836124361
1994	40.44170781645188
1995	39.04140526976161
1996	38.92765745461266
1997	38.78073386973153
1998	37.39300968937493
1999	38.70148171537499
2000	38.24389704022261
2001	35.24767001316196
2002	36.15029503115729
2003	35.10587508710341
2004	34.6763571054627
2005	33.824896676687956
2006	32.36648503861889
2007	31.164411323020442
2008	30.305716366418277
2009	31.32265206339955
2010	33.17937849081217
2011	30.805485476422
2012	30.076056958977254
2013	28.62265752747139
2014	27.461895362673506
2015	26.51850843107103
2016	25.517875372606362
2017	23.69954845889731
2018	22.33467205025654
2019	21.58337276002695
2020	22.180090192791603
2021	22.021452278050795
2022	20.91436998148792
2023	21.189550838677302