condition	mean	min	max
4 h after light	3.316775	2.86796	3.76559
8 h after light	3.8071349999999997	3.72702	3.88725
12 h after light	4.39391	3.95398	4.83384
4 h after dark	7.618295	6.80417	8.43242
8 h after dark	6.0123750000000005	5.91113	6.11362
12 h after dark	5.3207249999999995	4.77686	5.86459