condition mean min max 3 h after light 2.22437 1.09883 2.91343 6 h after light 5.56234 2.92968 8.62574 9 h after light 11.13448 4.8368 19.9002 12 h after light 7.20049575 0.716713 13.7968 3 h after dark 2.6366966666666665 1.77785 3.35448 6 h after dark 0.8815606666666667 0.442844 1.2479 9 h after dark 0.88144 0.430918 1.3155 12 h after dark 0.14069700000000002 0.110037 0.171357