condition mean min max 0 h after light 0.0 0.0 0.0 4 h after light 3.72273 0.0 7.44546 8 h after light 7.43825 0.0 14.8765 4 h after dark 0.0 0.0 0.0 8 h after dark 7.19665 0.0 14.3933 12 h after dark 7.1384 0.0 14.2768