condition	mean	min	max
4 h after light	6.567399999999999	4.83984	8.29496
8 h after light	6.84945	6.06009	7.63881
12 h after light	5.864005000000001	5.19747	6.53054
4 h after dark	6.32832	5.70801	6.94863
8 h after dark	8.541025000000001	8.00924	9.07281
12 h after dark	7.45937	6.38315	8.53559