condition mean min max 3 h after light 96.4511 91.3985 105.993 6 h after light 81.51886666666667 75.1115 91.2081 9 h after light 82.1909 74.8087 88.214 12 h after light 85.5148 75.1426 91.5419 3 h after dark 126.928 125.947 127.754 6 h after dark 167.27533333333332 160.558 172.004 9 h after dark 163.63566666666668 158.141 169.139 12 h after dark 176.19033333333334 163.006 193.042