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{"age":2,"len":14.3}
{"age":3,"len":21.8}
{"age":4,"len":27.6}
{"age":5,"len":31.5}
{"age":6,"len":35.3}
{"age":7,"len":39}
{"age":8,"len":41.1}
{"age":9,"len":43.8}
{"age":10,"len":45.1}
{"age":11,"len":47.4}
{"age":12,"len":48.9}
{"age":13,"len":50.1}
{"age":14,"len":51.7}
{"age":15,"len":51.7}
{"age":16,"len":54.1}