condition mean min max 4 h after light 145.59997900000002 144.57181 146.628148 8 h after light 158.5386475 149.954566 167.122729 12 h after light 154.337359 149.188644 159.486074 4 h after dark 171.923185 164.089061 179.757309 8 h after dark 112.3495295 89.914358 134.784701 12 h after dark 105.693597 105.693597 105.693597