condition	mean	min	max
4 h after light	9.204846666666667	9.00205	9.349
8 h after light	9.33696	9.1212	9.46393
12 h after light	9.55306	9.52322	9.5737
4 h after dark	9.125616666666666	8.97223	9.35355
8 h after dark	9.033143333333333	8.986410000000001	9.12082
12 h after dark	8.88538	8.80601	8.96818