condition mean min max 3 h after light 1.8638533333333334 1.45224 2.38514 6 h after light 1.9521466666666667 1.58297 2.45299 9 h after light 2.2913533333333334 1.80565 2.75597 12 h after light 3.0115425 2.33234 3.6956 3 h after dark 3.11266 2.56516 3.82063 6 h after dark 3.4751733333333332 2.71908 4.2172 9 h after dark 2.03495 1.83446 2.38589 12 h after dark 1.6708349999999998 1.02696 2.31471