condition	mean	min	max
4 h after light	9.872105	9.55271	10.1915
8 h after light	6.12835	5.94287	6.31383
12 h after light	2.76124	2.73089	2.79159
4 h after dark	7.604245	7.41144	7.79705
8 h after dark	7.77955	6.92378	8.63532
12 h after dark	10.90919	9.78048	12.0379