Year	% of GDP
1970	54.35191544257412
1971	53.69415710120285
1972	54.106819577474894
1973	52.82753629117576
1974	51.03712400565398
1975	52.84104843553329
1976	53.37318485787647
1977	53.79647210253319
1978	53.768095617740606
1979	52.749570199156594
1980	51.88519475889116
1981	51.80077232248404
1982	52.76732939279957
1983	52.58209080247948
1984	51.78077066965956
1985	52.066271782985666
1986	52.15893321423445
1987	52.14572626853329
1988	50.80093322732427
1989	50.26487059179659
1990	50.055519519783644
1991	53.17782713264825
1992	54.01382368899059
1993	53.871283894152235
1994	52.55595102976341
1995	50.95840647799572
1996	51.54531116836299
1997	50.09521059138863
1998	49.08860002988197
1999	48.844117368968455
2000	47.80053062839888
2001	47.552341178748236
2002	48.2530339560632
2003	49.65370447251712
2004	49.379558825382034
2005	49.63719054934512
2006	49.818099793518684
2007	48.575414813547724
2008	49.3218026921988
2009	52.145564988693074
2010	52.63018023524659
2011	53.16215315306215
2012	54.042290722603305
2013	54.183368327288925
2014	54.52133187044761
2015	54.47122548903659
2016	54.33159554611572
2017	53.15972974047839
2018	53.08615534862204
2019	52.56485087009815
2020	51.14897621388182
2021	51.264242172789075
2022	51.91174767545679
2023	52.4664565511031