condition mean min max 0 h after light 1.4351 1.3541 1.5161 4 h after light 0.8403609999999999 0.706799 0.973923 8 h after light 0.279231 0.243245 0.315217 4 h after dark 0.587955 0.547604 0.628306 8 h after dark 0.4341085 0.235344 0.632873 12 h after dark 0.6311675 0.466878 0.795457