condition mean min max 4 h after light 0.644334 0.550364 0.738304 8 h after light 0.501064 0.334303 0.667825 12 h after light 0.427435 0.173111 0.681759 4 h after dark 0.446934 0.235628 0.692744 8 h after dark 1.3993326666666668 0.978618 1.9978 12 h after dark 1.67557 1.51008 1.82187