condition mean min max 4 h after light 2.110935 2.05429 2.16758 8 h after light 2.08293 1.9488 2.21706 12 h after light 1.937225 1.92459 1.94986 4 h after dark 1.0470009999999998 0.866983 1.24966 8 h after dark 0.6602213333333333 0.338385 1.06213 12 h after dark 1.1744216666666665 0.990045 1.3396