step,mean16
10,0.6894946808510638
20,0.706781914893617
30,0.7473404255319149
40,0.754654255319149
50,0.7632978723404256
60,0.7785904255319149
70,0.7699468085106383
80,0.773936170212766
90,0.7799202127659575
100,0.7805851063829787