num_observation,sbibm.c2st 1,0.630649983882904 2,0.6549000144004822 3,0.6226999759674072 4,0.5936499834060669 5,0.7455000281333923 6,0.5831500291824341 7,0.6434999704360962 8,0.6186500191688538 9,0.6299499869346619 10,0.6582000255584717