condition	mean	min	max
4 h after light	7.101336666666667	6.97982	7.17295
8 h after light	7.159063333333333	7.1447899999999995	7.17483
12 h after light	7.264363333333333	7.16827	7.403580000000001
4 h after dark	6.48198	6.42245	6.51864
8 h after dark	6.59871	6.43973	6.78446
12 h after dark	6.671953333333334	6.58287	6.748010000000001