condition	mean	min	max
4 h after light	7.28296	7.084	7.4334
8 h after light	7.317403333333333	7.09767	7.44485
12 h after light	7.265233333333334	7.036410000000001	7.4293
4 h after dark	7.380293333333333	7.158810000000001	7.593189999999999
8 h after dark	7.245590000000001	7.182410000000001	7.33513
12 h after dark	7.247916666666667	7.0507800000000005	7.34932