Left: soft-band (0.5–2 keV) X-ray luminosity (L_X,500c) and redshift (z) distributions of the galaxy group sample used in this work consisting of 1178 objects. The luminosity of the groups cover a range of 3.9 ×10⁴⁰–1.4 × 10⁴³ ergs s⁻¹, and the redshift span of the sample is 0.003–0.48. Right: count (C_500c) and mass (M_500c) distributions of the 1178 galaxy group used in this work. Measured counts of galaxy groups range between 10–14 380, and their masses span a range of 2.1 × 10¹²–10¹⁴ M_⊙. Median values of the L_X,500c, z, C_500c and M_500c observables are 6.3 × 10⁴² ergs s^–1, 0.11, 95, 6.5 × 10¹³ M_⊙ respectively.