step,mean16
10,0.4857142857142857
20,0.5815476190476191
30,0.6345238095238095
40,0.6601190476190476
50,0.6848214285714286
60,0.6946428571428571
70,0.7136904761904762
80,0.7270833333333333
90,0.725
100,0.7333333333333333