Year	% of GDP
1970	4.18847990036011
1971	4.06639003753662
1972	4.24694013595581
1974	4.28332996368408
1975	4.34501981735229
1976	4.7459602355957
1984	11.3056898117065
1985	9.61779022216797
1986	9.12957000732422
1988	7.79334020614624
1989	7.73472023010254
1994	8.47928047180176
1995	7.24050998687744
1996	7.31149005889893
1998	5.63179016113281
1999	4.94468021392822
2002	4.88109016418457
2003	5.05177021026611
2006	4.48331022262573
2007	4.06658267974854
2010	3.54826331138611
2011	3.62881994247437
2012	2.54104995727539
2013	3.61677002906799
2014	3.95247006416321
2015	5.05932998657227
2016	4.32328987121582
2017	4.2350001335144
2018	4.03900003433228
2019	4.05100011825562
2020	4.89099979400635
2021	5.62400007247925
2022	4.73999977111816