condition mean min max 4 h after light 63.68925 61.5296 65.8489 8 h after light 48.824600000000004 47.4632 50.186 12 h after light 47.27405 47.0505 47.4976 4 h after dark 61.94316666666666 61.8735 62.0712 8 h after dark 77.34413333333333 76.8876 78.145 12 h after dark 71.22903333333333 66.0918 74.8474