condition mean min max 4 h after light 0.16435885 0.0964397 0.232278 8 h after light 0.250041 0.18554 0.314542 12 h after light 0.410871 0.179218 0.642524 4 h after dark 0.743461 0.521309 0.965613 8 h after dark 0.8476539999999999 0.75916 0.936148 12 h after dark 0.745704 0.581512 0.909896