condition mean min max 4 h after light 3.869615 3.42812 4.31111 8 h after light 4.7257750000000005 4.13203 5.31952 12 h after light 6.328049999999999 6.10204 6.55406 4 h after dark 5.386716666666667 5.06973 5.86685 8 h after dark 5.373153333333334 5.09541 5.64811 12 h after dark 3.7118700000000002 3.49126 3.91731