condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.12180033333333333 0.0 0.365401 9 h after light 0.025060233333333334 0.0 0.0751807 12 h after light 0.035844 0.0 0.143376 3 h after dark 0.0 0.0 0.0 6 h after dark 0.0495427 0.0 0.0792383 9 h after dark 0.1270296 0.0 0.308502 12 h after dark 0.0 0.0 0.0