condition mean min max 3 h after light 132.332 113.68 157.473 6 h after light 67.88113333333334 39.3375 111.739 9 h after light 40.964166666666664 31.5522 46.3222 12 h after light 62.239 38.8788 117.469 3 h after dark 43.43573333333333 38.9782 51.1018 6 h after dark 50.890233333333335 48.2169 52.6353 9 h after dark 66.7565 54.9545 82.5353 12 h after dark 97.1668 95.9934 98.3402