condition	mean	min	max
4 h after light	12.403	10.9257	13.8803
8 h after light	9.693795000000001	9.50229	9.8853
12 h after light	13.95665	12.4751	15.4382
4 h after dark	21.32265	19.07	23.5753
8 h after dark	19.498350000000002	19.0893	19.9074
12 h after dark	18.6096	18.4258	18.7934