Total cumulative >1 GV proton fluence of the GLEs and sub-GLEs of SC 23 (red polyline) plotted as a function of time since the start of the SC; the same GLE fluence plotted by scaling the parameters J₀ and R₀ to the values representing SC 24 assuming an entirely suprathermal seed population (blue polyline); and the true cumulative GLE fluence of SC 24 (black polyline). The green polyline is the scaled fluence assuming that the seed population consists of 40% of suprathermals. The 1σ uncertainties are given as dashed polylines around each of the cumulative fluence polylines.