condition	mean	min	max
4 h after light	9.16114	8.182356	10.139924
8 h after light	9.4034715	8.387326	10.419617
12 h after light	8.1917045	7.920647	8.462762
4 h after dark	7.9703610000000005	7.47796	8.462762
8 h after dark	8.1172535	7.787761	8.446746
12 h after dark	7.88154	7.88154	7.88154