condition mean min max 4 h after light 72.1705 63.8466 80.4944 8 h after light 50.02955 47.9328 52.1263 12 h after light 59.1481 58.0064 60.2898 4 h after dark 69.8757 65.8701 73.1312 8 h after dark 81.4312 78.2482 84.6875 12 h after dark 79.08826666666667 71.4401 84.1145