Year	% of GDP
1975	15.719843702247225
1976	15.902959148258903
1977	13.212003220874319
1978	10.918070188048022
1979	10.241346996293574
1980	9.588316751853297
1981	9.257992180178332
1982	9.269194977276591
1983	7.900060926780098
1984	8.942722754531923
1985	7.488869054209589
1986	7.327126823383176
1987	7.431750415119782
1988	7.174707202459259
1989	6.929860066385508
1990	6.859176782358797
1991	6.191348557546973
1992	5.723677561614475
1993	5.6127271207451885
1994	5.0675218172758445
1995	4.776114854410709
1996	4.578219760413529
1997	3.9203495529971746
1998	4.334543296756278
1999	3.898942831473799
2000	3.647264681267479
2001	3.860797129446186
2002	3.788259647587189
2003	3.352910421315583
2004	3.0833167706399665
2005	2.73852799962435
2006	2.2759724395310053
2007	2.023541109570987
2008	2.093313391103515
2009	1.9888203219052905
2010	2.0576557565242752
2011	2.145318717952269
2012	2.001274969259371
2013	2.036335666732778
2014	1.8448819322352217
2015	1.8679845184110946
2016	2.14376219902412
2017	1.852022519005839
2018	1.728541443532312
2019	1.765236535888542
2020	1.8490606461864647
2021	1.625008073370794
2022	1.5916765669438744
2023	1.5844813489881482