condition	mean	min	max
4 h after light	5.38725	5.2503400000000005	5.51001
8 h after light	5.3756699999999995	5.26146	5.49293
12 h after light	5.367103333333334	5.18255	5.5643
4 h after dark	5.280303333333333	5.15682	5.36877
8 h after dark	5.45517	5.32547	5.64762
12 h after dark	5.468146666666667	5.25387	5.77886