Year	% of GDP
1972	0.7628521769623695
1973	1.1541808987032414
1974	1.0900664010946892
1975	5.43223040637582
1976	4.641403654709639
1977	4.082531744099116
1978	3.988564643714702
1979	3.7606098943436432
1980	2.8870650535067304
1981	2.7066128433519494
1982	4.210189537915369
1983	5.786237127318232
1984	4.387239391914431
1985	4.635655368803345
1986	6.717635403356606
1987	5.562926699948754
1988	3.8424226205650496
1989	3.9794211533169257
1990	3.9414357144631382
1991	4.278137940660306
1992	3.1762709995617477
1993	4.850937632679067
1994	5.86614441424234