condition	mean	min	max
4 h after light	2.138065	1.54885	2.72728
8 h after light	4.805995	4.09102	5.52097
12 h after light	6.34701	5.35011	7.34391
4 h after dark	6.31365	5.52603	6.87901
8 h after dark	4.278483333333334	3.45488	4.87903
12 h after dark	3.9311366666666667	3.01149	5.53056