condition mean min max 3 h after light 3.4991516666666667 1.84412 4.90825 7 h after light 2.388673333333333 1.05767 4.69948 11 h after light 2.2577095000000003 0.711404 5.55877 2 h after dark 1.9142823333333334 0.562749 3.78124 6 h after dark 2.516515 1.0241 5.5287 10 h after dark 3.29639 1.38745 5.8168