condition mean min max 4 h after light 3.745835 2.829951 5.330082 8 h after light 5.158892666666667 3.0436900000000002 6.84247 12 h after light 3.399531 1.596378 6.64812 16 h after light 4.7775636666666665 3.3295269999999997 6.025517 4 h after dark 5.026612 4.2450730000000005 5.5438480000000006 8 h after dark 3.8845436666666666 3.7070279999999998 4.172194999999999