Year	% of GDP
1972	16.09428040918707
1973	15.809690352193584
1974	18.199534310618603
1975	17.90481590445426
1976	19.36354274949308
1977	20.309115678263513
1978	20.152865052796056
1979	19.976383991393032
1980	21.39792173802749
1981	24.17743271930668
1982	33.696736153279375
1983	27.37901125040053
1984	31.245993725585556
1985	31.579057583338248
1986	31.398040607331147
1987	34.33875509374692
1988	34.12576536487265
1989	38.271882455622105
1990	42.2902882976528
1995	42.863159786821484
1996	42.4140371110499
1997	42.40961847252757
1998	42.707096647574346
1999	41.79275850503639
2000	42.84684399860568
2001	42.434043880278516
2002	41.99784603967714
2003	42.02232512319687
2004	43.452826032425726
2005	42.9431876899722
2006	42.41959738396815
2007	44.049583911045154
2008	47.21096569165412
2009	51.2654639796872
2010	50.95705266409853
2011	54.829067460519475
2012	56.62153088813226
2013	60.75068885914385
2014	49.421117527515975
2015	51.91392541891025
2016	48.842317808933636
2017	47.798411346253104
2018	48.30537013633436
2019	47.393086277331705
2020	58.95558775813999
2021	55.75911405978212
2022	50.94366435096431