condition mean min max 4 h after light 2.5375449999999997 1.82701 3.24808 8 h after light 1.484165 1.37446 1.59387 12 h after light 1.820435 1.74007 1.9008 4 h after dark 2.7871 2.39766 3.17654 8 h after dark 2.600755 2.26857 2.93294 12 h after dark 1.44712 1.28884 1.6054