condition	mean	min	max
4 h after light	3.2	3.2	3.2
8 h after light	2.6	2.1	3.1
12 h after light	1.15	1.0	1.3
4 h after dark	1.9	1.7	2.1
8 h after dark	14.65	2.1	27.2
12 h after dark	13.6	3.8	23.4