condition	mean	min	max
4 h after light	7.8618966666666665	7.694789999999999	8.00651
8 h after light	7.613146666666666	7.412660000000001	7.8963399999999995
12 h after light	7.7794099999999995	7.57609	7.9283399999999995
4 h after dark	7.684126666666667	7.45861	7.849639999999999
8 h after dark	7.65954	7.545389999999999	7.75537
12 h after dark	7.7806	7.5389800000000005	7.95377