Year	% of GDP
1975	23.250825126779127
1976	23.577080923397794
1977	23.325671497238314
1978	23.759309023131607
1979	23.582732638840092
1980	22.49535691182658
1981	20.705102132965568
1982	20.387362576374272
1983	20.54292009949857
1984	21.112293748555075
1985	21.282273912002232
1986	22.248800472787277
1987	21.863453492061893
1988	22.889656814585827
1989	23.230250423955468
1990	23.415326763019426
1991	22.666097533059045
1992	21.95025786906888
1993	21.374880138785734
1994	21.634572500220663
1995	22.5703855220954
1996	22.35616343265875
1997	22.94604728149784
1998	23.228436947373982
1999	22.97031069544828
2000	22.854847452656134
2001	22.770669719829144
2002	22.62000171166086
2003	22.175083866033837
2004	23.10583647019815
2005	23.039536625939846
2006	23.949231998611616
2007	24.667279383686424
2008	23.376003704797874
2009	21.171193685903532
2010	21.79043050141048
2011	22.541076453257666
2012	22.1890326588273
2013	22.38999559412674
2014	23.0043724445628
2015	23.687916275405776
2016	24.165946988608276
2017	24.72376199679706
2018	25.23954346032376
2019	25.54255751365539
2020	24.355884931233074
2021	26.539945717161352
2022	25.024455391820226
2023	25.388512884152398