condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.0513585 0.0 0.102717 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 2 h after dark 0.0 0.0 0.0 4 h after dark 0.149688 0.102277 0.197099 8 h after dark 0.057664 0.0 0.115328 12 h after dark 0.0 0.0 0.0