Intrinsic statistical properties of , π, and γ for stars with observational frequencies greater than 3, 4, 5, and 6 in groups of classification based on T_eff. The x-axis in the left panel is based on spectra type, while in the right panel it is based on T_eff. Top panel: represents the trend of , and the middle (bottom) represents the trend of π (γ). The blue dot-dashed and red solid lines represent the results of stars classified based upon T_eff in groups of B8-A, B4-B7, and O-B3 with observational frequencies greater than five and six, respectively, while the gray and yellow dashed lines represent frequencies greater than three and four.