condition mean min max 0 h after light 13.9295 13.7057 14.1533 2 h after light 6.545695 6.01876 7.07263 4 h after light 5.245855 4.84122 5.65049 8 h after light 5.765885 5.26429 6.26748 12 h after light 8.609815 7.09983 10.1198 2 h after dark 10.9329 10.8828 10.983 4 h after dark 12.0539 11.4716 12.6362 8 h after dark 20.18265 19.7933 20.572 12 h after dark 17.60755 17.4731 17.742