IC (measured in nats) between the posterior and prior distributions for ﹩{\lambda }_{\min }﹩ = 0.3, 0.6, and 1.1 μm retrievals. Left panel: change in IC with the number of data points. Right panel: change in IC with data wavelength cutoff. Planets are ordered in terms of their retrieved Rayleigh enhancement factor, ﹩\mathrm{log}a﹩, with the planet with the highest value of ﹩\mathrm{log}a﹩ (HD 189733b) in yellow and the lowest value of ﹩\mathrm{log}a﹩ (WASP-17b) in purple.