Year	% of GDP
1977	74.1177576797906
1978	77.01703830823597
1979	56.34544304613725
1980	79.66523751503797
1981	84.03628353825827
1982	79.30517349347072
1983	72.97406402288667
1984	76.9533292071465
1985	69.46075600411135
1986	73.24546128594018
1987	75.06481528542639
1988	82.98940261476837
1989	82.10125502971214
1990	85.88607362188799
1991	74.62585951193205
1992	67.5042724223052
1993	57.4277439208351
1994	54.09002395595467
1995	57.55453919941718
1996	62.95221561894142
1997	61.7184348527632
1998	60.17162353103353
1999	58.47613731509909
2000	60.5750969046059
2001	51.439769201458816
2002	47.719618065204585
2003	48.935206162211145
2004	50.65359477124183
2005	56.82823414574628
2006	53.298914281375744
2007	55.29528614497544
2008	62.6379222542862
2009	52.752745172283234
2010	52.852632131580336
2011	50.89556983079163
2012	49.79461815743147
2013	47.76274713839751
2014	51.111617182384926
2015	45.123596736963954
2016	40.26172693499248
2017	40.26445295024109
2018	56.23948513899645
2019	55.27056899736548
2020	45.41715024460474
2021	45.02341217433066
2022	47.26931124300782
2023	47.859869292890394