{"year":1976,"rate":15.99}
{"year":1977,"rate":15.44}
{"year":1978,"rate":15.54}
{"year":1979,"rate":15.5}
{"year":1980,"rate":15.36}
{"year":1981,"rate":14.49}
{"year":1982,"rate":14.02}
{"year":1983,"rate":13.47}
{"year":1984,"rate":12.7}
{"year":1985,"rate":11.73}
{"year":1986,"rate":11.32}
{"year":1987,"rate":10.64}
{"year":1988,"rate":10.71}
{"year":1989,"rate":10.08}