Year	% of GDP
1972	41.53005464480874
1973	43.26413565239075
1974	71.43981304589072
1977	73.77878523489287
1978	71.40679595713247
1979	53.26179283785469
1980	89.34245990589174
1981	90.72690054891636
1982	68.76680355960929
1983	68.13579047157874
1984	67.83333464859648
1985	58.8222526101018
1986	91.18149790558367
1990	58.71269219173952
1991	8.371142193467385
1992	10.040332789147296
1993	31.354161477278637
1994	34.48509625278169
1995	36.801045120102536
1996	35.369229300781626
1997	45.4994732097277
1998	43.76146208815532