condition	mean	min	max
4 h after light	7.548826666666667	7.35072	7.70171
8 h after light	7.507433333333333	7.360339999999999	7.65705
12 h after light	7.58437	7.44831	7.6852100000000005
4 h after dark	7.437853333333333	7.28815	7.64416
8 h after dark	7.2835	7.238910000000001	7.34668
12 h after dark	7.30372	7.1877699999999995	7.463360000000001