condition	mean	min	max
4 h after light	7.696296666666667	7.522130000000001	7.88824
8 h after light	7.31385	7.04593	7.61322
12 h after light	7.437126666666667	7.1237	7.71765
4 h after dark	7.40346	7.099710000000001	7.71125
8 h after dark	7.355903333333334	7.1719	7.460030000000001
12 h after dark	7.44575	7.13785	7.776619999999999