Distribution of i_b and R_b/R_∗ in a function of time for a trial fit, in which both parameters were allowed to vary for individual complete transit light curves. Open and filled symbols represent the literature and our new datasets, respectively. Continuous lines denote weighted mean values. Grayed areas between dashed lines show uncertainties at the confidence level of 95.5%, i.e. 2σ, where σ is the weighted standard deviation.