These tables contain numerical values for the distortion of the spectral intensity {Delta}I/y defined by the equation {Delta}I/y = 1/y * X^3^/(e^X^-1) * {Delta}n(X)/n0(X) = X^3^/(e^X^-1)*F({theta}_e_,X) The spectral intensity is the function of two variables X and {theta}_e_. Here X={omega}/k_B_*T_0_, {omega} being the photon angular frequency and k_B_*T_0_ being the thermal energy of CMB photons, and {theta}_e_=k_B_*Te/m_e_*c^2^, k_B_*Te being the thermal energy of the electrons and m_e_*c^2^ being the electron rest energy (T_0_ is the temperature of the cosmic microwave background radiation). In these tables, the range for X is taken as 0<X<20 and the range for {theta}_e_ is taken as 0.002<{theta}_e_<0.100.