condition	mean	min	max
0 h after light	9.825785	8.19667	11.4549
4 h after light	2.9311300000000005	1.66738	4.19488
8 h after light	2.609085	1.33262	3.88555
4 h after dark	7.404395	5.80866	9.00013
8 h after dark	7.7713	7.09132	8.45128
12 h after dark	10.522735	8.95227	12.0932