condition	mean	min	max
0 h after light	16.9946	15.99	17.9992
4 h after light	3.0583099999999996	2.76828	3.34834
8 h after light	1.6896545	0.691399	2.68791
4 h after dark	9.529545	7.00429	12.0548
8 h after dark	9.57046	9.10682	10.0341
12 h after dark	13.598949999999999	12.2753	14.9226