condition	mean	min	max
4 h after light	7.713206666666667	7.50899	8.04982
8 h after light	7.887246666666667	7.52729	8.26529
12 h after light	8.16824	8.04447	8.29743
4 h after dark	7.80565	7.5255600000000005	7.9539100000000005
8 h after dark	7.58424	7.449510000000001	7.70023
12 h after dark	7.386103333333334	7.3067	7.428960000000001