condition mean min max 4 h after light 5.31619 5.277769999999999 5.34357 8 h after light 5.431606666666666 5.37251 5.53979 12 h after light 5.21426 4.98607 5.36068 4 h after dark 5.294496666666667 5.25804 5.34581 8 h after dark 5.238673333333333 5.20144 5.2917 12 h after dark 5.25469 5.14151 5.37115