condition mean min max 0 h after light 3.796355 3.39037 4.20234 4 h after light 1.945149 0.888678 3.00162 8 h after light 3.0563599999999997 2.6078 3.50492 4 h after dark 6.479195 5.67648 7.28191 8 h after dark 3.77391 3.75405 3.79377 12 h after dark 3.492785 3.05552 3.93005