Year	% of GDP
1975	2.039789565753847
1976	2.5907813205043864
1977	2.628449690392139
1978	2.886608478209335
1979	3.448737460001063
1980	3.8846676073108948
1981	3.7353890788536472
1982	3.829843789463153
1983	3.834143576799731
1984	3.860224755448942
1985	3.768371482148308
1986	3.5592113984720606
1987	3.5513348003237786
1988	3.684332947583936
1989	4.0860898006633795
1990	4.17793740310264
1991	4.925616454448015
1992	5.0580092600431605
1993	5.174014098840727
1994	5.373306070750401
1995	5.745246522579577
1996	5.565358788000977
1997	5.755450001527927
1998	6.342945087349685
1999	6.905669713113346
2000	7.073297596350532
2001	7.2137330289825154
2002	7.410971511197972
2003	7.69524027118925
2004	9.5854039681432
2005	11.175731341592995
2006	12.351468383626653
2007	11.931323036495632
2008	12.34147924959077
2009	10.130509856499765
2010	11.015144398102292
2011	11.032895352810105
2012	11.325041684326374
2013	11.158407345014242
2014	10.798207671344898
2015	10.383078584062458
2016	10.09051778258503
2017	10.09698073425182
2018	10.905364837607008
2019	10.924378704906827
2020	10.253591190188994
2021	10.447982337886584
2022	12.489390263439361
2023	12.619756977189562