condition	mean	min	max
4 h after light	7.40754	7.345910000000001	7.46144
8 h after light	7.445833333333333	7.410989999999999	7.47152
12 h after light	7.33357	7.269880000000001	7.416510000000001
4 h after dark	7.315126666666666	7.267689999999999	7.34819
8 h after dark	7.32652	7.31884	7.340310000000001
12 h after dark	7.444933333333333	7.4117	7.50683