Year	% of GDP
1977	66.14305750350631
1978	67.51561749159059
1979	60.20353919954912
1980	62.877256047330185
1981	62.369435681738516
1982	59.55141608059304
1983	58.01592797783933
1984	58.306795355445594
1985	59.27091219334305
1986	57.904954499494444
1987	55.80324450269877
1989	57.168843892880474
1990	55.95925457991156
1991	55.1675259388781
1992	51.214538436796396
1993	51.39327296248383
1994	53.38048481129181
1995	54.916302128900554
1996	57.81906345247991
1997	42.85448079389043
1998	43.06900699816485
1999	39.24584877151748
2000	41.597381034040865
2001	38.42829199442643
2002	34.10252714735462
2003	35.25330633623785
2004	37.786752274085096
2005	42.636383969419086
2006	49.24143696673141
2007	47.920861452920136
2008	47.93558806764203
2009	42.3303639766138
2010	43.72231511050184
2011	50.898420626685
2012	46.12378154004011
2013	46.56014929105985
2014	46.83846511331225
2015	37.12934483674466
2016	37.52373330154703
2017	40.14807913898355
2018	40.36446360912507
2019	36.98314408199014
2020	33.68982346207146
2021	43.45451187010177
2022	43.747145336621905
2023	42.95846845904383