condition	mean	min	max
4 h after light	23.2725	18.0915	28.4535
8 h after light	9.81577	8.42674	11.2048
12 h after light	7.18935	6.52872	7.84998
4 h after dark	14.349466666666666	10.5709	19.047
8 h after dark	16.2831	12.9419	20.4719
12 h after dark	19.127366666666667	13.5631	23.3896