condition mean min max 3 h after light 0.188132 0.114813 0.292294 6 h after light 0.229928 0.0 0.386442 9 h after light 0.22772233333333333 0.102929 0.466395 12 h after light 0.178039525 0.0917662 0.428618 3 h after dark 0.118224 0.0 0.354672 6 h after dark 0.07331233333333334 0.0 0.117799 9 h after dark 0.20262223333333335 0.0868537 0.305671 12 h after dark 0.1626641 0.0911642 0.234164