condition	mean	min	max
4 h after light	12.5	12.5	12.5
8 h after light	18.25	14.0	22.5
12 h after light	23.25	16.9	29.6
4 h after dark	41.5	30.1	52.9
8 h after dark	45.849999999999994	36.4	55.3
12 h after dark	31.45	29.0	33.9