condition	mean	min	max
4 h after light	9.46185	9.247069999999999	9.632010000000001
8 h after light	9.46356	9.32686	9.58452
12 h after light	9.48029	9.21733	9.6461
4 h after dark	9.445966666666667	8.96848	9.84164
8 h after dark	9.364116666666666	9.09385	9.50254
12 h after dark	9.347560000000001	9.23376	9.423960000000001