condition	mean	min	max
4 h after light	15.7772	15.2252	16.3292
8 h after light	18.52915	18.4644	18.5939
12 h after light	18.17685	17.6326	18.7211
4 h after dark	23.51775	21.3011	25.7344
8 h after dark	24.849449999999997	23.9208	25.7781
12 h after dark	19.40465	18.0565	20.7528