num_observation,sbibm.c2st 1,0.6349999904632568 2,0.694350004196167 3,0.6488500237464905 4,0.8242499828338623 5,0.7944999933242798 6,0.7662500143051147 7,0.8327500224113464 8,0.8208000063896179 9,0.8695999979972839 10,0.6776000261306763