condition	mean	min	max
4 h after light	8.053813	7.09297	9.014656
8 h after light	6.9843554999999995	6.447169	7.521542
12 h after light	8.276727	7.414542	9.138912
4 h after dark	7.5892365	6.993184	8.185289
8 h after dark	7.521542	7.521542	7.521542
12 h after dark	7.461396	7.461396	7.461396