condition	mean	min	max
0 h after light	5.619065	5.32141	5.91672
4 h after light	4.078395	3.74759	4.4092
8 h after light	4.66544	4.62832	4.70256
4 h after dark	5.86974	5.80062	5.93886
8 h after dark	5.150255	4.43463	5.86588
12 h after dark	4.82348	4.74149	4.90547