condition mean min max 4 h after light 67.05285 66.7173 67.3884 8 h after light 58.52305 57.6716 59.3745 12 h after light 62.405249999999995 59.3316 65.4789 4 h after dark 63.5162 62.9291 64.1033 8 h after dark 67.91635 64.399 71.4337 12 h after dark 72.2447 71.4231 73.0663