condition	mean	min	max
4 h after light	7.337514	6.844809	7.830219
8 h after light	6.852216	6.770019	6.934413
12 h after light	6.9598785	6.416931	7.502826
4 h after dark	6.7482115	6.738393	6.75803
8 h after dark	6.7429945	6.71597	6.770019
12 h after dark	5.898677	5.898677	5.898677