condition	mean	min	max
4 h after light	7.561203333333333	0.0	13.9462
8 h after light	8.40895	4.22561	14.4639
12 h after light	6.60471	4.07416	8.56554
4 h after dark	18.181226666666667	9.52898	27.0342
8 h after dark	16.685136666666665	5.00091	30.0276
12 h after dark	23.0805	12.3221	43.4493