condition	mean	min	max
4 h after light	8.417609500000001	8.159105	8.676114
8 h after light	7.881349	7.744191	8.018507
12 h after light	7.8090935	7.459082	8.159105
4 h after dark	7.603915499999999	7.595577	7.612254
8 h after dark	8.5502565	8.159105	8.941408
12 h after dark	8.782575	8.782575	8.782575