condition mean min max 4 h after light 1.56052 1.29608 1.82496 8 h after light 1.4072815 0.782483 2.03208 12 h after light 1.453095 1.08283 1.82336 4 h after dark 1.5684233333333333 1.41878 1.76981 8 h after dark 1.59017 1.00075 2.09971 12 h after dark 1.1213156666666668 0.89951 1.47273