condition mean min max 2 h after light 3.309606666666667 2.80565 3.70199 6 h after light 3.6784566666666665 3.35331 3.84125 10 h after light 3.75447 3.18907 4.52478 2 h after dark 3.56485 3.30529 3.78345 6 h after dark 3.61639 3.38608 3.97976 10 h after dark 3.68467 3.48788 4.00133