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Fig. 5.

Fig. 5. Refer to the following caption and surrounding text.

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X-ray luminosity (LX) versus redshift for the X-CLASS-LR sample (red circles). X-CLASS-LR sources with measurement uncertainties greater than 10% are plotted in purple. Dashed red lines represent the redshift limits of the sample. Additional samples with measurement uncertainties below 10% are shown: the MCXC-II survey in black (Sadibekova et al. 2024), the Cosmology Sample of the eROSITA DR1 in cyan (Bulbul et al. 2024), the XXL DR2 survey in green (Adami et al. 2018), and the eROSITA Final Equatorial-Depth Survey (eFEDS) sample in blue (Liu et al. 2022).

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