condition mean min max 0 h after light 0.5535595 0.489553 0.617566 4 h after light 0.47188700000000006 0.356988 0.586786 8 h after light 1.007072 0.594404 1.41974 4 h after dark 1.309515 1.30528 1.31375 8 h after dark 0.4190805 0.241874 0.596287 12 h after dark 0.30004 0.243473 0.356607