condition	mean	min	max
4 h after light	1.49489	1.49361	1.49617
8 h after light	0.994256	0.885892	1.10262
12 h after light	1.388685	1.22763	1.54974
4 h after dark	1.298905	1.13446	1.46335
8 h after dark	1.60913	1.45973	1.75853
12 h after dark	1.771295	1.56125	1.98134