Year	% of GDP
1983	52.03601285897985
1984	50.88930738648253
1985	56.41227380015735
1986	60.251015134736065
1987	55.900783289817234
1988	59.736332849540396
1989	58.29789615040286
1990	59.279680307552226
1991	58.728040916166336
1992	58.0918638491712
1993	56.691007548408265
1994	54.793412733421555
1995	56.02618681357994
1996	55.07534246575343
1997	55.02119850661267
1998	76.16826621221634
1999	79.2443557945249
2000	71.30685612029593
2001	76.5128068303095
2002	71.76702322654775
2003	70.02732595966168
2004	69.07335244957478
2005	67.15027347733383
2006	63.02688691859867
2007	60.711180006805556
2008	58.31481883634299
2009	61.25804258817206
2010	64.05009539048557
2011	63.395979972425806
2012	65.5157481451543
2013	66.2500697427886
2014	68.61944777911164
2015	68.47358047629211
2016	67.08064268596456
2017	61.93025535098905
2018	58.9548684158298
2019	55.521637971149374