condition	mean	min	max
4 h after light	19.8	19.8	19.8
8 h after light	34.15	29.5	38.8
12 h after light	47.95	43.1	52.8
4 h after dark	38.95	23.0	54.9
8 h after dark	30.7	29.5	31.9
12 h after dark	37.95	35.1	40.8