condition mean min max 4 h after light 57.8389 56.6634 59.0144 8 h after light 58.610150000000004 57.1831 60.0372 12 h after light 54.52845 54.5127 54.5442 4 h after dark 69.3812 68.3639 70.3985 8 h after dark 74.32499999999999 73.8414 74.8086 12 h after dark 69.79294999999999 69.065 70.5209