condition mean min max 0 h after light 0.0181667 0.0 0.0363334 2 h after light 0.0203959 0.0 0.0407918 4 h after light 0.01780755 0.0 0.0356151 8 h after light 0.0186902 0.0 0.0373804 12 h after light 0.04191525 0.0414772 0.0423533 2 h after dark 0.03740585 0.0 0.0748117 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0565655 0.0 0.113131 12 h after dark 0.019392 0.0 0.038784