condition	mean	min	max
4 h after light	8.654869999999999	8.489339999999999	8.79505
8 h after light	9.374039999999999	9.19229	9.5034
12 h after light	8.93457	8.71222	9.12669
4 h after dark	8.789123333333333	8.71303	8.88744
8 h after dark	8.73743	8.58728	8.859919999999999
12 h after dark	8.389716666666667	8.35735	8.42302