Data release for "Updated T2K measurements of muon neutrino and antineutrino disappearance using 3.6E21 protons on target"

This data release accompanies the results of T2K's analysis of muon neutrino and antineutrino oscillation data collected between 2010 and 2020. The file format is ROOT and contains the best-fit point and the 68% and 90% confidence level contours in the oscillation parameters space investigated by the analysis. The results for both mass ordering are included. Each entry in the file is a TGraph described in DataReleaseNuMuAntiNuMuDis.pdf.