condition mean min max 0 h after light 0.509652 0.509198 0.510106 4 h after light 1.28029 1.00408 1.5565 8 h after light 3.22473 2.82113 3.62833 4 h after dark 2.35421 1.90788 2.80054 8 h after dark 1.05779 1.00299 1.11259 12 h after dark 0.7516944999999999 0.508514 0.994875