Left: evolution of the measured transit depths from the planet- per- planet global analyses of transit light curves at 3.6 μm. The horizontal black lines show the medians of the global MCMC posterior PDFs from the planet- per- planet analyses with TTV and no transit depth variations allowed (with their 1-σ and 2-σ confidence intervals (see values in Table 6) in shades of gray). Events are ranked in order of capture, left to right (but not linearly in time). Right: similarly, but for transits observed at 4.5 μm.