condition mean min max 0 h after light 5.100099999999999 4.06555 6.13465 4 h after light 4.975535 4.37348 5.57759 8 h after light 3.843705 3.26808 4.41933 4 h after dark 7.56945 7.50809 7.63081 8 h after dark 8.8239 8.08681 9.56099 12 h after dark 6.57294 6.45396 6.69192