condition	mean	min	max
4 h after light	3.0	3.0	3.0
8 h after light	4.5	3.1	5.9
12 h after light	10.1	3.9	16.3
4 h after dark	23.75	18.0	29.5
8 h after dark	3.7	3.6	3.8
12 h after dark	13.55	2.8	24.3