condition	mean	min	max
4 h after light	6.634495	5.44233	7.82666
8 h after light	6.697815	6.44101	6.95462
12 h after light	5.919615	5.73219	6.10704
4 h after dark	6.8220849999999995	6.20946	7.43471
8 h after dark	6.31257	6.24809	6.37705
12 h after dark	7.0591550000000005	6.808	7.31031