Ratio of the irradiation-averaged fission yield values estimated by the different burnup determination methods, to the simulation-based irradiation-averaged fission yield values. The comparison offers an integral assessment of the distribution of fissions predicted by the different burnup determination methods, including the one proposed in this work. In the first column, the ORIGEN (calculated, case-specific) effective cross-section values are used. The second column illustrates the performance of the various methods, with the set of generic effective cross-sections as proposed in Table 2. The last column illustrates the sensitivity of the methods to scatter, which is simulated as 1% noise in the actinide inventory, assuming a normal distribution.