condition mean min max 0 h after light 1.225085 1.11888 1.33129 2 h after light 0.444997 0.294965 0.595029 4 h after light 0.9714465 0.865863 1.07703 8 h after light 1.18372 1.15112 1.21632 12 h after light 1.84037 1.59691 2.08383 2 h after dark 1.70303 1.64789 1.75817 4 h after dark 1.932475 1.86778 1.99717 8 h after dark 2.117255 1.91625 2.31826 12 h after dark 1.693775 1.63437 1.75318