The primary purpose of the International Criticality Safety Benchmark Evaluation Project (ICSBEP), the International Reactor Physics Experiment Evaluation Project (IRPhEP) and the Research Reactor Benchmarking Database: Facility Specification and Experimental Data Technical Reports Series No. 480 is to compile critical and subcritical benchmark experiment data into a standardised format that allows criticality safety analysts to robustly use the experimental data to validate simulation tools and cross-section libraries. However, in addition to criticality some benchmark evaluations also contain spectral indices and measured reaction rate data; another class of experimental data that can provide additional qualification of the underlying nuclear data and simulation tools. The aim of this work is to highlight the availability of such information and to illustrate to the technical community the need for a significantly greater number of active neutron histories when running Monte Carlo jobs to compare calculation and experiment.