condition	mean	min	max
4 h after light	15.658631	14.138356	17.178906
8 h after light	14.838220499999998	14.721091	14.95535
12 h after light	16.5635665	14.399968	18.727165
4 h after dark	12.489315	12.406134	12.572496
8 h after dark	13.475296	12.550624	14.399968
12 h after dark	21.590684	21.590684	21.590684