RLF for FRI (blue) and FRII (red) sources split in different redshift bins. For comparison and to show that our FRI and FRII space densities do not extend above the total RLAGN population, we added the total RLAGN RLF from Kondapally et al. (2022) beyond L₁₅₀ ∼ 10²⁴ W Hz⁻¹ in green. We also added the local RLFs for both FRIs and FRIIs with dot-dashed lines. We removed radio luminosity bins which only contain a single source. The 1σ bars from our RLFs are including z_max errors, Poisson errors, completeness corrections errors, and classification errors, as explained in Sects. 4.1.2 and 4.2. Data points are given in Table 2.