condition	mean	min	max
4 h after light	4.02195	3.9430699999999996	4.07439
8 h after light	3.947203333333333	3.90228	4.0029699999999995
12 h after light	3.9566466666666664	3.8734599999999997	4.01433
4 h after dark	4.05266	3.9355599999999997	4.1725900000000005
8 h after dark	3.9966566666666665	3.96769	4.0489999999999995
12 h after dark	4.027666666666667	3.96631	4.07658