tf_2-tf_1:1.0
tf_3-tf_2:60.0
tf_4-tf_3:0.0
tf_5-tf_4:0.0
tf_6-tf_5:0.0
tf_7-tf_6:0.0
tf_8-tf_7:3.0
tf_9-tf_8:189.0
tf_9-tf_1:253.0