condition mean min max 0 h after light 3.22522 2.75022 3.70022 4 h after light 23.40335 15.0636 31.7431 8 h after light 16.7733 16.4146 17.132 4 h after dark 15.032399999999999 13.77 16.2948 8 h after dark 12.6968 11.1679 14.2257 12 h after dark 5.055565 3.81445 6.29668