Literature retrievals of tidal decay rate and our results plotted as a function of cycle number starting from Hellier et al. (2011) as epoch zero. Non-detections are shown in red, detections are in green, and cases where there is only an upper limit are in grey. A zoom-in of the region between cycle numbers 2000 and 6000 is provided to show the small error bars of the latest studies. Our result is shown in green because even if BIC and AIC disfavour the tidal decay fit in comparison to the one- planet eccentric fit, in Section 3.6 we detect the same tidal decay rate, and this fit is the preferred one. The error bar on our value is particularly small because we fit TTVs and RVs simultaneously and because we make use of the longest dataset available.