condition	mean	min	max
4 h after light	8.5567665	8.507971	8.605562
8 h after light	8.2443335	7.786754	8.701913
12 h after light	9.067243	8.936454	9.198032
4 h after dark	8.337328500000002	8.069095	8.605562
8 h after dark	8.917949	8.618607	9.217291
12 h after dark	8.391386	8.391386	8.391386