condition mean min max 4 h after light 5.1939166666666665 4.50382 5.71399 8 h after light 3.7527 1.80052 4.83301 12 h after light 4.931143333333334 2.30576 8.50833 4 h after dark 5.3451 4.04668 7.12445 8 h after dark 6.322743333333333 5.72554 7.44742 12 h after dark 7.88634 7.23389 8.71727