condition	mean	min	max
4 h after light	10.6	10.6	10.6
8 h after light	12.5	3.4	21.6
12 h after light	17.95	17.4	18.5
4 h after dark	26.9	18.7	35.1
8 h after dark	8.8	2.8	14.8
12 h after dark	9.5	2.0	17.0