condition mean min max 4 h after light 7.774985 7.69722 7.85275 8 h after light 17.669249999999998 16.7768 18.5617 12 h after light 32.9266 30.9595 34.8937 4 h after dark 31.185166666666667 29.7744 31.9942 8 h after dark 19.986366666666665 18.9014 20.6279 12 h after dark 12.1485 10.4059 13.3238