condition	mean	min	max
4 h after light	5.207843333333333	5.1656699999999995	5.28148
8 h after light	5.23268	5.0873800000000005	5.34271
12 h after light	5.263	5.15375	5.3870000000000005
4 h after dark	5.66641	5.62052	5.71935
8 h after dark	5.740953333333334	5.62137	5.9701
12 h after dark	5.81584	5.58555	5.96354