1987 3.952884 0.252980 3.1640% 1986 0.428685 2.332717 2.6144% 1985 0.594607 1.681784 2.9715% 1984 14.359266 0.069641 3.6576% 1983 0.704874 1.418694 3.8998% 1982 0.824401 1.213001 6.3831% 1981 2.901200 0.344685