condition	mean	min	max
4 h after light	7.612926666666667	7.4987699999999995	7.7169
8 h after light	7.667396666666667	7.40608	7.83829
12 h after light	7.7946	7.71555	7.84789
4 h after dark	7.870559999999999	7.52659	8.0999
8 h after dark	7.646843333333334	7.33753	7.906000000000001
12 h after dark	7.710623333333333	7.43425	7.90406