Comparison of the derived correlation lengths to the literature. The r₀ values calculated in this study are represented with purple stars. Green symbols correspond to studies of samples based on Lyα selected galaxies. The samples from Durkalec et al. (2014) at z ∼ 2.5 and z ∼ 3.5 (dark and light yellow) are based on continuum-selected high-z galaxies. The horizontal colored bars indicate the redshift ranges of the corresponding studies (spectroscopic surveys). The redshift range of the z-subsamples of this paper are not plotted for a better visibility. Values for r₀ are plotted at the median redshift of the samples. The r₀ from Ouchi et al. (2003) and Bielby et al. (2001) have been shifted by +0.1 along the x-axis for visual purposes. Our one-parameter PL-fit with fixed γ = 1.8 by +0.2. The upper limit of the r₀ from Shioya et al. (2009) corresponds to r₀ = 10.1 Mpc.