condition mean min max 4 h after light 10.513255999999998 8.957116 12.069396 8 h after light 11.3693805 9.741697 12.997064 12 h after light 10.275959 9.404861 11.147057 4 h after dark 8.469185 8.368026 8.570344 8 h after dark 9.289062 8.792599 9.785525 12 h after dark 8.079359 8.079359 8.079359