Data release : Search for proton decay via p->e+pi0pi0 and p->mu+pi0pi0 in 0.401 megaton-years exposure of Super-Kamiokande I-V

This data release accompanies the article "Search for proton decay via p -> e+ pi0 pi0 and p -> mu+ pi0 pi0 in 0.401 megaton-years exposure of the Super-Kamiokande I–V" (arXiv:2604.10975). The data provided here include the numerical values used to generate Figures 1–4 in the publication. These consist of bin-by-bin values of the distributions, including bin lower and upper edges, bin contents, and associated uncertainties where applicable. The values correspond to signal Monte Carlo (MC), atmospheric neutrino background MC, and observed data used in the analysis. All values are provided in CSV format. For details on the detector, simulation, event selection, and analysis procedures, please refer to the associated article.