condition	mean	min	max
4 h after light	6.1647300000000005	5.68304	6.64642
8 h after light	6.897215	6.43318	7.36125
12 h after light	7.32619	7.27549	7.37689
4 h after dark	9.316063333333332	9.10067	9.63378
8 h after dark	9.69601	8.96314	10.7971
12 h after dark	8.02005	7.4392	8.6099