condition	mean	min	max
4 h after light	16.3851075	15.804514	16.965701
8 h after light	14.990822999999999	14.177132	15.804514
12 h after light	13.793543499999998	12.983386	14.603701
4 h after dark	16.633853	15.804514	17.463192
8 h after dark	17.584511499999998	17.056347	18.112676
12 h after dark	12.492125	12.492125	12.492125