condition mean min max 4 h after light 2.78474 2.36604 3.20344 8 h after light 0.7723915 0.705661 0.839122 12 h after light 0.412455 0.25291 0.572 4 h after dark 0.7959625 0.612846 0.979079 8 h after dark 1.086949 0.889868 1.28403 12 h after dark 1.9070649999999998 1.68549 2.12864