condition	mean	min	max
4 h after light	7.404315	7.26783	7.5408
8 h after light	4.125835	4.04725	4.20442
12 h after light	3.558555	2.83801	4.2791
4 h after dark	9.259575	8.5844	9.93475
8 h after dark	8.030845	7.75625	8.30544
12 h after dark	9.251365	9.06471	9.43802