condition mean min max 0 h after light 3.42952 3.22597 3.63307 4 h after light 1.7870650000000001 1.30255 2.27158 8 h after light 1.9841699999999998 1.68102 2.28732 4 h after dark 3.046635 2.84951 3.24376 8 h after dark 2.93955 2.87022 3.00888 12 h after dark 3.635295 3.06519 4.2054