condition	mean	min	max
4 h after light	4.50149	4.493180000000001	4.51474
8 h after light	4.570976666666667	4.51369	4.64922
12 h after light	4.42623	4.38204	4.46977
4 h after dark	4.52977	4.50988	4.56669
8 h after dark	4.56359	4.44851	4.64285
12 h after dark	4.444413333333333	4.38077	4.511430000000001