Year	% of GDP
1960	25.69783710395796
1961	19.286888920357853
1962	16.75218343261391
1963	19.122099776488398
1964	20.469680826091714
1965	21.9480840193061
1966	22.492096855576925
1967	20.56294497620012
1968	20.730165088860055
1969	20.813351523064654
1970	24.430237075393723
1971	24.81884273062967
1972	24.30973953146464
1973	25.067357000259495
1974	25.586219999091426
1975	26.906412468714446
1976	26.64261425339363
1977	27.763713226006594
1978	26.95397752919665
1979	25.25744508491476
1980	26.483638342793135
1981	25.867547991793653
1982	24.169987415884776
1983	24.38800033512919
1984	24.470496050637582
1985	24.89969351626642
1986	24.586755773710635
1987	23.978376135546764
1988	25.4732603606072
1989	25.698847799256434
1990	26.75081050926878
1991	24.755269697132892
1992	25.773180115671764
1993	26.37619863236197
1994	26.852587342903462
1995	25.896511965074005
1996	25.23996019053842
1997	24.70845389696035
1998	24.020028341099835
1999	24.604102686480836
2000	24.44703405568989
2001	25.29720706357698
2002	25.81390110850278
2003	27.37802454494113
2004	29.07168424011607
2005	28.77442446744106
2006	29.22074777739277
2007	30.51893037138506
2008	31.696726902416138
2009	32.48282305551381
2010	33.56522507064745
2011	33.98773423203728
2012	34.02166297421967
2013	34.13264346646835
2014	34.166199106819036
2015	33.473775971894604
2016	32.968377171370086
2017	33.41667892120185
2018	34.50388688327611
2019	33.789187681064135
2020	34.16592605336867
2021	35.24340835556515
2022	34.90556475129172