condition mean min max 0 h after light 3.480935 2.68058 4.28129 4 h after light 0.712345 0.54529 0.8794 8 h after light 0.8069415 0.705947 0.907936 4 h after dark 0.6142345 0.527674 0.700795 8 h after dark 0.353599 0.175689 0.531509 12 h after dark 2.6334049999999998 1.78147 3.48534