Year	% of GDP
1977	20.8773091294556
1978	22.2143588776937
1979	24.7441989252911
1980	25.3239816315363
1981	27.2908169100814
1982	27.9218746988436
1983	29.6821254651116
1984	27.591229384774
1985	27.5936805143508
1986	23.6089878543735
1987	22.8247764528708
1988	27.8633564204123
1989	34.307481795347
1990	38.8208362446218
1991	39.5087299447216
1992	41.773213494525
1993	43.6814396910638
1994	43.7766352390692
1995	46.4959997841368
1996	45.4253202731984
1997	47.2265209578642
1998	47.0953808686862
1999	46.8628523583589
2000	50.4332663238446
2001	47.8556420445267
2002	48.1686915732023
2003	45.3772628217576
2004	45.4546921649318
2005	48.586157459659
2006	50.4146420165515
2007	49.120689806717
2008	48.9566004639846
2009	48.9165467625899
2010	53.1026077565194
2011	55.6149973757549
2012	59.1161340964342
2013	57.6210049056043
2014	53.6747416664294
2015	51.3062418235741
2016	46.9458549189495
2017	51.0095228626819
2018	47.170534355222
2019	40.4083820367623
2020	53.2435469890846
2021	50.0600312162324
2022	47.0498923340633
2023	42.112720723986