condition	mean	min	max
4 h after light	4.09999	3.56276	4.63722
8 h after light	5.74488	5.60616	5.8836
12 h after light	8.251335	7.55568	8.94699
4 h after dark	9.247375	8.86421	9.63054
8 h after dark	8.28029	8.1684	8.39218
12 h after dark	6.575585	6.35163	6.79954