condition	mean	min	max
4 h after light	8.611816666666666	8.48058	8.74996
8 h after light	8.12678	7.9897800000000005	8.25308
12 h after light	8.42737	8.297939999999999	8.53293
4 h after dark	8.214623333333334	8.20402	8.222439999999999
8 h after dark	8.351663333333333	8.209389999999999	8.5452
12 h after dark	8.434153333333333	8.37393	8.49912