condition	mean	min	max
4 h after light	7.230239999999999	7.18628	7.270789999999999
8 h after light	7.131340000000001	7.097860000000001	7.185810000000001
12 h after light	7.32209	7.24855	7.43796
4 h after dark	7.278576666666667	6.98975	7.56647
8 h after dark	7.36463	7.30266	7.437710000000001
12 h after dark	7.13913	7.0886	7.23212