condition mean min max 0 h after light 2.76199 2.25932 3.26466 2 h after light 1.74803 1.40163 2.09443 4 h after light 2.21748 1.82864 2.60632 8 h after light 3.24518 3.11883 3.37153 12 h after light 7.72405 7.71932 7.72878 2 h after dark 6.550425 4.6983 8.40255 4 h after dark 6.75583 5.60315 7.90851 8 h after dark 5.536300000000001 5.50799 5.56461 12 h after dark 3.159725 2.48918 3.83027