-| | Set Global Variable | ${pkt_trace} | ${False}
-| | Set Global Variable | ${dut_stats} | ${False}
+| | ${stat_runtime}= | Create List | noop
+| | ${stat_pre_trial}= | Create List | noop
+| | ${stat_post_trial}= | Create List | noop
+| | Set Global Variable | ${stat_runtime}
+| | Set Global Variable | ${stat_pre_trial}
+| | Set Global Variable | ${stat_post_trial}