condition mean min max 4 h after light 2.57423 2.07676 3.0717 8 h after light 2.7099200000000003 2.56517 2.85467 12 h after light 3.851835 3.69574 4.00793 4 h after dark 4.32472 3.81799 4.83145 8 h after dark 3.004175 2.82579 3.18256 12 h after dark 3.84578 3.82924 3.86232