condition	mean	min	max
0 h after light	1.70597	1.60789	1.80405
4 h after light	10.520624999999999	9.63855	11.4027
8 h after light	18.9431	18.8346	19.0516
4 h after dark	3.23008	2.08448	4.37568
8 h after dark	3.9744	3.70484	4.24396
12 h after dark	2.28077	1.73419	2.82735