condition	mean	min	max
4 h after light	4.27322	4.20264	4.33732
8 h after light	4.2138333333333335	4.161630000000001	4.315230000000001
12 h after light	4.204273333333333	4.16014	4.24434
4 h after dark	4.257343333333333	4.20043	4.3586599999999995
8 h after dark	4.2468	4.07799	4.33274
12 h after dark	4.267496666666667	4.217980000000001	4.35341