Two hundred experimental photofissility data obtained in the quasi-deuteron region (~ 30-140 MeV) of photonuclear absorption covering the target nuclei ²⁷Al, ^natTi, ⁵¹V, ¹⁵⁴Sm, ¹⁷⁴Yb, ^natHf, ¹⁸¹Ta, ^natW, ^natRe, ^natOs, ^natPt, ¹⁹⁷Au, ^natTl, ²⁰⁸Pb, ^natPb and ²⁰⁹Bi have been analysed within the framework of the current two-step model for intermediate-energy photofission reactions. The incoming photon is assumed to be absorbed by a neutron-proton pair (Levinger's quasi-deuteron model), followed by a mechanism of evaporation-fission competition for the excited residual nuclei. The experimental features of photofissility have been reproduced successfully by the model.