condition	mean	min	max
4 h after light	5.159793333333334	5.0892800000000005	5.24563
8 h after light	5.2878066666666665	5.16224	5.51769
12 h after light	5.32675	4.825740000000001	5.81875
4 h after dark	5.24535	5.14827	5.3289599999999995
8 h after dark	5.162163333333333	5.0464199999999995	5.2786599999999995
12 h after dark	5.189026666666667	5.17161	5.21408