condition	mean	min	max
4 h after light	1.4	1.4	1.4
8 h after light	4.7	1.8	7.6
12 h after light	11.65	6.7	16.6
4 h after dark	2.0	1.7	2.3
8 h after dark	4.25	4.0	4.5
12 h after dark	2.2	1.8	2.6