condition	mean	min	max
4 h after light	13.9075	12.1804	15.6346
8 h after light	15.74175	15.1885	16.295
12 h after light	17.562150000000003	17.0347	18.0896
4 h after dark	29.02785	28.4753	29.5804
8 h after dark	30.638849999999998	30.2095	31.0682
12 h after dark	27.9424	27.8088	28.076