condition	mean	min	max
4 h after light	4.3736	4.14704	4.60016
8 h after light	4.77164	4.74812	4.79516
12 h after light	6.6067350000000005	6.43927	6.7742
4 h after dark	8.388595	7.77687	9.00032
8 h after dark	6.828175	6.41067	7.24568
12 h after dark	6.287425	5.8245	6.75035