condition mean min max 0 h after light 0.670208 0.641135 0.699281 4 h after light 0.9802150000000001 0.68714 1.27329 8 h after light 3.1819499999999996 2.64314 3.72076 4 h after dark 2.391075 2.17621 2.60594 8 h after dark 1.446545 1.18647 1.70662 12 h after dark 0.9144620000000001 0.902306 0.926618