condition mean min max 4 h after light 2.759855 2.20596 3.31375 8 h after light 2.58078 2.53957 2.62199 12 h after light 2.972855 2.40737 3.53834 4 h after dark 3.49653 2.85385 4.05161 8 h after dark 2.7506966666666663 2.01577 3.25174 12 h after dark 3.150943333333333 2.41678 4.00531