Year	% of GDP
1968	62.316008884741656
1969	61.988336931461674
1970	63.17499590795508
1971	60.20446372096953
1972	57.57638331092434
1973	50.07298082609193
1974	32.92674006638798
1975	40.181962833600124
1976	37.887225949726165
1977	43.41249511556087
1978	46.60383299615035
1979	42.24362343054923
1980	37.517187006591094
1981	40.63455877628333
1982	48.7780347454456
1983	53.6105482098465
1984	56.47635384105961
1985	58.44737499639534
1986	63.536096639482565
1987	62.0899786495689
1988	63.41116233035472
1989	67.74822455749558
1990	60.244932661899185
1991	63.33304480034182
1992	59.21549499229939
1993	63.26745979836076
1994	62.2695453051726
1995	61.08877071123504
1996	58.815815666023354
1997	57.744302785925136
1998	60.53546825998539
1999	55.48583364951276
2000	48.91923680573679
2001	50.48287855081573
2002	51.06757080645108
2003	48.880446876228184
2004	46.36045116414684
2005	42.48094480481933
2006	41.60108191635089
2007	43.27173676127988
2008	41.496519727757516
2009	48.86920720014737
2010	43.5066631452107
2011	39.94993638252947
2012	40.199649221952036
2013	41.40631796866365
2014	44.39106306140408
2015	50.718319665899095
2016	52.38761591238881
2017	50.43273944393552
2018	47.07359422535833
2019	49.12441963749519
2020	54.2407476660867
2021	50.81237269888478
2022	45.01494960770535
2023	47.51604101755863