condition	mean	min	max
4 h after light	7.6234090000000005	7.260395	7.986423
8 h after light	8.541032000000001	7.986423	9.095641
12 h after light	7.5187745	7.190432	7.847117
4 h after dark	7.928891999999999	7.828997	8.028787
8 h after dark	7.9223669999999995	7.858311	7.986423
12 h after dark	7.986423	7.986423	7.986423