condition	mean	min	max
4 h after light	6.82454	5.67146	7.59413
8 h after light	12.70977	3.71531	19.7695
12 h after light	14.79054	8.44652	22.1568
4 h after dark	18.07893333333333	13.435	23.408
8 h after dark	13.0141	11.1213	14.0618
12 h after dark	8.826893333333334	6.65885	10.9679