condition	mean	min	max
4 h after light	7.01982	6.90319	7.13645
8 h after light	5.685415000000001	5.50473	5.8661
12 h after light	8.064405	7.91098	8.21783
4 h after dark	9.27693	9.04284	9.51102
8 h after dark	12.345849999999999	12.0003	12.6914
12 h after dark	10.56655	10.3711	10.762