Year	% of GDP
1965	12.030076917481628
1966	10.760401770105812
1967	11.810680344352473
1968	10.849421179961528
1969	11.219850391560666
1970	17.56756699339187
1971	12.50729126235969
1972	12.552900765521652
1973	16.58801469484052
1974	19.718852699880518
1975	17.115787554012798
1976	12.866433756277388
1977	25.743405349270226
1978	26.78198186676941
1979	21.356526965728957
1980	21.74372235736909
1981	19.625362009305235
1982	29.562717272644605
1983	27.153168102223663
1984	28.594995160284913
1985	26.67106889120761
1986	26.011808126827486
1987	20.993136692324992
1988	20.970021617245635
1989	20.06774957426671
1990	20.681220993986386
1991	22.031616754385077
1992	16.536788354494576
1993	20.384215746229646
1994	22.612536091589483
1995	24.094309363897732
1996	20.77601911473848
1997	22.515615627963133
1998	20.11712089265011
1999	19.28811841232971
2000	18.97801153483463
2001	17.724227259105028
2002	16.931988169354444
2003	16.725366238686835
2004	18.125219305811058
2005	18.164156939542746
2006	19.02961378599733
2007	19.12004239755688
2008	16.846368109063768
2009	15.548408587307069
2010	15.727639235637191
2011	15.66978646259535
2012	15.718173130393659
2013	16.255226958462877
2014	16.11539609793976
2015	14.688007919458956
2016	17.079380829945613
2017	16.94831296322933
2018	16.422933696113766
2019	15.256313742645201
2020	14.393250495227496
2021	14.419484857248943
2022	15.06021049309361
2023	15.40000000019737