condition mean min max 0 h after light 7.387650000000001 6.71671 8.05859 4 h after light 4.69759 3.87732 5.51786 8 h after light 2.48786 2.29688 2.67884 4 h after dark 5.3617550000000005 4.87537 5.84814 8 h after dark 4.972305 4.73813 5.20648 12 h after dark 6.7229 6.235 7.2108