condition	mean	min	max
4 h after light	3.3	3.3	3.3
8 h after light	2.3	2.3	2.3
12 h after light	5.65	3.8	7.5
4 h after dark	11.0	3.9	18.1
8 h after dark	3.9	2.2	5.6
12 h after dark	2.3	2.2	2.4