condition	mean	min	max
4 h after light	2.063995	1.91841	2.20958
8 h after light	3.191805	3.02698	3.35663
12 h after light	1.94456	1.92136	1.96776
4 h after dark	4.50451	3.5865	5.42252
8 h after dark	3.045895	2.8477	3.24409
12 h after dark	2.802705	2.19206	3.41335