Year	% of GDP
1970	55.17684711009569
1971	55.374517858163266
1972	54.735531327251486
1973	54.240821472505104
1974	53.997352992276646
1975	56.70432746914982
1976	57.17781557747122
1977	58.058264709022026
1978	56.17255206326076
1979	55.81481430538213
1980	56.50380114317504
1981	57.50673331985971
1982	57.69202919865051
1983	58.91969108872821
1984	57.81763627621943
1985	57.72784583035472
1986	56.92485185627585
1987	56.81296993894034
1988	56.3024996497777
1989	55.981236373783304
1990	55.9173349051597
1991	55.419010396817235
1992	56.113890604310214
1993	56.0366600765965
1994	55.703094923041604
1995	54.93848974074048
1996	55.5080319542669
1997	54.762325634037815
1998	54.304074819524516
1999	53.63186604619913
2000	53.86670853805558
2001	54.11115597373324
2002	53.539908797583365
2003	54.08337770590374
2004	53.86195469280448
2005	53.80972699284931
2006	53.21524976528469
2007	52.015739108213225
2008	51.825275782009996
2009	53.48156507467158
2010	53.50191201900771
2011	53.379739234677636
2012	53.4598132187912
2013	53.66286087934249
2014	53.3964545942265
2015	52.6828319800756
2016	52.26185547608772
2017	52.5091341994776
2018	51.93369478855949
2019	51.556245431322324
2020	49.77441952428803
2021	49.79222508893588
2022	51.2068486386181
2023	51.75915480058105