condition mean min max 4 h after light 0.40098449999999997 0.399425 0.402544 8 h after light 0.9460285 0.709797 1.18226 12 h after light 0.8768855 0.697061 1.05671 4 h after dark 1.3370799999999998 1.30557 1.36859 8 h after dark 0.694801 0.691728 0.697874 12 h after dark 0.6756995 0.578462 0.772937