condition mean min max 4 h after light 40.1577 32.8003 50.2649 8 h after light 20.60064 9.47152 31.7919 12 h after light 19.092733333333335 14.7343 21.8036 4 h after dark 57.8787 51.1783 70.0215 8 h after dark 78.20353333333334 59.4209 92.9756 12 h after dark 39.64646666666667 24.5361 50.6357