p_help,n,pred_help,obs_help_rate,mean_gain
"(0.7, 0.8]",22,0.8,0.8636363636363636,0.015553977272727225
"(0.8, 0.9]",35,0.8461538461538461,0.8857142857142857,0.012008928571428532
"(0.9, 1.0]",3343,0.9934614657603243,0.8953036195034401,0.014132842880646097