condition	mean	min	max
4 h after light	8.884836666666667	8.54306	9.14095
8 h after light	8.931849999999999	8.46931	9.290519999999999
12 h after light	9.196463333333334	8.81621	9.44242
4 h after dark	10.147363333333335	9.729560000000001	10.3594
8 h after dark	10.28049	9.86877	10.71647
12 h after dark	10.460343333333332	10.11684	10.67367