condition	mean	min	max
4 h after light	7.433566666666667	7.306360000000001	7.611839999999999
8 h after light	7.285656666666667	7.065230000000001	7.53885
12 h after light	7.27369	7.031630000000001	7.43036
4 h after dark	7.495986666666667	7.1768600000000005	7.8197
8 h after dark	7.609623333333333	7.33493	7.89655
12 h after dark	7.889469999999999	7.87325	7.91104