condition mean min max 4 h after light 98.380879 95.417245 101.344513 8 h after light 78.0216755 67.038049 89.005302 12 h after light 397.1449915 220.078211 574.211772 4 h after dark 108.6409805 64.167506 153.114455 8 h after dark 511.6367355 495.171056 528.102415 12 h after dark 139.754418 139.754418 139.754418