condition	mean	min	max
4 h after light	18.9343705	18.243605	19.625136
8 h after light	18.0741855	17.455531	18.69284
12 h after light	15.6344055	15.339363	15.929448
4 h after dark	16.062179999999998	15.063399	17.060961
8 h after dark	14.890352499999999	14.74738	15.033325
12 h after dark	15.688659	15.688659	15.688659