condition mean min max 4 h after light 1.59539 1.27036 1.92042 8 h after light 3.635115 2.08383 5.1864 12 h after light 4.104175 3.16712 5.04123 4 h after dark 6.138085 5.53642 6.73975 8 h after dark 2.62596 2.20002 3.0519 12 h after dark 3.7517899999999997 3.67956 3.82402