condition mean min max 4 h after light 54.88235 51.7503 58.0144 8 h after light 52.1412 50.8693 53.4131 12 h after light 66.06285 63.6198 68.5059 4 h after dark 76.68 71.834 81.526 8 h after dark 69.40899999999999 69.1922 69.6258 12 h after dark 66.43595 63.9402 68.9317