condition	mean	min	max
4 h after light	9.257973333333334	9.14714	9.40806
8 h after light	9.2857	9.17021	9.48707
12 h after light	9.332253333333334	9.25711	9.38311
4 h after dark	9.35495	9.321	9.405389999999999
8 h after dark	9.393743333333333	9.35561	9.41756
12 h after dark	9.31893	9.10967	9.44629