Cumulative conditional probability as a function of fluence and solar flare class. CCP P(f₈₀₀|I) as a function of f₈₀₀ for different classes of solar flares as indicated in the legend. Dots with error bars are based on the observed data (cf. Figure 2), while lines with shaded areas represent the parameteric model described in AppendixC with its uncertainties. All shown uncertainties are 1σ.