condition mean min max 3 h after light 5.014456666666667 4.62569 5.43934 6 h after light 5.08797 4.0848 5.94033 9 h after light 5.991183333333333 5.37435 6.76975 12 h after light 5.7125 4.66981 6.78592 3 h after dark 7.730176666666667 7.3408 8.48474 6 h after dark 6.75659 6.17285 7.18622 9 h after dark 5.726753333333334 4.71414 7.12638 12 h after dark 4.584245 4.55548 4.61301