num_observation,sbibm.c2st 1,0.814050018787384 2,0.784600019454956 3,0.7646499872207642 4,0.784850001335144 5,0.8991000056266785 6,0.760699987411499 7,0.7177500128746033 8,0.7116000056266785 9,0.7973999977111816 10,0.7799999713897705