where t tot is the total number of timesteps, µ ref n (t) is the average of the species of interest n at time t of 20 KMC simulations for the reference where no rate was changed, µ n, mul/div n (t) is the mean of the number of species of interest n at time t for the model where the rate of reaction j was multiplied or divided by 10, respectively. Median(S n, mul/div 1..154