condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 5.728406666666666 2.30135 11.6383 12 h after light 5.43282 0.0 11.4739 4 h after dark 6.09968 0.0 12.6594 8 h after dark 8.61814 0.0 21.1598 12 h after dark 4.885623333333333 0.0 9.91495