condition mean min max 0 h after light 20.7566 20.2856 21.2276 2 h after light 11.2564 10.5611 11.9517 4 h after light 10.602689999999999 9.55068 11.6547 8 h after light 8.845765 7.93266 9.75887 12 h after light 10.882165 9.75983 12.0045 2 h after dark 10.62765 10.3493 10.906 4 h after dark 13.42985 11.0988 15.7609 8 h after dark 19.6096 18.229 20.9902 12 h after dark 21.94715 21.2962 22.5981