condition	mean	min	max
4 h after light	4.333906666666667	4.26649	4.448180000000001
8 h after light	4.29286	4.18299	4.4657599999999995
12 h after light	4.21791	4.09957	4.39785
4 h after dark	4.40069	4.29817	4.4884900000000005
8 h after dark	4.52279	4.42091	4.69431
12 h after dark	4.55253	4.42894	4.72555