The timescale of molecular conformational changes in an STM-BJ experiment (picoseconds to nanoseconds) is typically orders of magnitude smaller than the timescale of a single STM-BJ trajectory (milliseconds) , suggesting that a broad range of molecular conformations is sampled over the course of a single 'pulling' experiment in STM-BJ. For these reasons, the conductance of individual molecules typically shows significant variability across the underlying ensemble , and average molecular conductance is frequently reported along with one-dimensional (1D) conductance histograms .