condition	mean	min	max
4 h after light	7.090333333333334	6.943919999999999	7.2382800000000005
8 h after light	7.03652	6.93376	7.161519999999999
12 h after light	7.020593333333333	6.75657	7.34472
4 h after dark	6.7551	6.44968	7.118180000000001
8 h after dark	6.764696666666667	6.49709	7.08511
12 h after dark	6.835243333333334	6.60535	7.06571