{"year":1971,"peak":330}
{"year":1972,"peak":461}
{"year":1973,"peak":900}
{"year":1974,"peak":148}
{"year":1975,"peak":363}
{"year":1976,"peak":1800}
{"year":1977,"peak":1200}
{"year":1978,"peak":359}
{"year":1979,"peak":505}
{"year":1980,"peak":3360}
{"year":1981,"peak":359}
{"year":1982,"peak":1200}
{"year":1983,"peak":330}
{"year":1984,"peak":984}
{"year":1985,"peak":62.5}
{"year":1986,"peak":479}
{"year":1987,"peak":673}
{"year":1988,"peak":457}
{"year":1989,"peak":290}
{"year":1990,"peak":134}
{"year":1991,"peak":444}
{"year":1992,"peak":419}
{"year":1993,"peak":957}
{"year":1994,"peak":1400}
{"year":1995,"peak":999}
{"year":1996,"peak":1480}
{"year":1997,"peak":299}