condition	mean	min	max
4 h after light	8.924619	7.711502	10.137736
8 h after light	7.761851500000001	7.646142	7.877561
12 h after light	7.635011	7.62388	7.646142
4 h after dark	8.041125	7.951705	8.130545
8 h after dark	8.4225675	7.951705	8.89343
12 h after dark	8.364412	8.364412	8.364412