condition mean min max 4 h after light 0.672083 0.612533 0.731633 8 h after light 0.674474 0.645036 0.703912 12 h after light 1.48919 1.44791 1.53047 4 h after dark 1.63177 1.44432 1.81922 8 h after dark 1.0259550000000002 1.01076 1.04115 12 h after dark 1.0160535 0.919947 1.11216