Pulsar gamma-ray efficiency above 100 MeV; that is, the gamma-ray luminosity over the pulsar spindown power (L_γ/L), as reported in the third Fermi-LAT catalog (gray stars; Smith et al. 2023), as a function of the pulsar spindown power (L). The properties of the pulsar simulated in this work (B_⋆ = 10⁷ G, P = 1 ms) are shown by the red dot. The error bars give a measure of the variations of the spindown and radiative efficiencies measured in a 0.5P time frame.