condition	mean	min	max
4 h after light	7.58106	7.0895600000000005	7.865889999999999
8 h after light	7.581216666666666	7.19418	8.02075
12 h after light	7.51725	6.5365	8.1307
4 h after dark	7.493869999999999	7.11998	7.880039999999999
8 h after dark	7.75129	7.31498	8.10946
12 h after dark	7.899723333333333	7.37064	8.17942