condition mean min max 4 h after light 5.59931 4.54728 6.65134 8 h after light 3.5149549999999996 3.39009 3.63982 12 h after light 5.2401 5.13131 5.34889 4 h after dark 6.480433333333333 5.86467 6.86438 8 h after dark 6.540563333333333 5.91604 7.74288 12 h after dark 5.32307 4.1566 6.43186