"Simplified likelihood: covariance matrix" of "Search for new physics in the $\tau$ lepton plus missing transverse momentum final state in proton-proton collisions at $\sqrt{s}$ = 13 TeV"

Matrix of covariance coefficients between signal region bins. The coefficients
are obtained from the background-only fit and serve as input to the simplified likelihood
reinterpretation scheme. The naming of the bins is "year_binnumber", following the binning used in Figure 4.