This repository contains data presented in the paper "Microlensing Optical Depth, Event Rate, and Limits on Compact Objects in Dark Matter Based on 20 Years of OGLE Observations of the Small Magellanic Cloud". table1.txt (electronic version of Table 1 (OGLE-IV Fields Toward the Small Magellanic Cloud)) table2.txt (electronic version of Table 2 (Error Bar Correction Coefficients for the I-band Data)) table4.txt (electronic version of Table 4 (Detected Microlensing Events)) table6.txt (electronic version of Table 6 (Number of Microlensing Source Stars Observed in OGLE-IV Fields)) limits.dat (95% upper limits on the fraction of dark matter in the form of primordial black holes and other compact objects) phot.tar.gz (calibrated I-band photometry of individual events) eff_o3_o4.tar.gz (event detection efficiencies in individual fields observed by OGLE-III and OGLE-IV) eff_o4.tar.gz (event detection efficiencies in individual fields observed by OGLE-IV only)