condition	mean	min	max
4 h after light	9.0214575	8.837761	9.205154
8 h after light	8.6062325	8.537219	8.675246
12 h after light	8.315257	7.820455	8.810059
4 h after dark	8.4780195	7.800679	9.15536
8 h after dark	8.733635	8.733635	8.733635
12 h after dark	9.707831	9.707831	9.707831