condition	mean	min	max
4 h after light	8.164284	6.474205	10.54353
8 h after light	11.067029333333334	7.850988	15.25346
12 h after light	9.194964	7.4878860000000005	12.24506
16 h after light	15.019753333333334	10.85314	21.23151
4 h after dark	18.013446666666667	14.35401	22.75173
8 h after dark	8.669220333333334	6.394356	12.94694