Contribution to the overall identification fraction (i.e. the ratio of the number of sources with identifications within each category to the total number of sources) for sources at a given 150 MHz flux density, in bins of 0.23 dex, for all sources (blue) and via the two major methods: LGZ (green) and LR (orange). Filled regions show the errors that are estimated using Monte Carlo simulations drawn from Poissonian distributions.