condition	mean	min	max
4 h after light	2.457695	1.90124	3.01415
8 h after light	2.51247	2.35396	2.67098
12 h after light	2.62864	2.26723	2.99005
4 h after dark	3.664406666666667	2.98153	4.16246
8 h after dark	3.24103	2.99336	3.67511
12 h after dark	4.121053333333333	3.40259	4.53473