condition	mean	min	max
4 h after light	8.948557000000001	8.322675	9.574439
8 h after light	7.1552585	7.037983	7.272534
12 h after light	7.369117	6.917779	7.820455
4 h after dark	7.2353115	6.81202	7.658603
8 h after dark	8.086027999999999	7.779468	8.392588
12 h after dark	8.935717	8.935717	8.935717