condition	mean	min	max
4 h after light	3.99168	3.97456	4.00964
8 h after light	4.00737	3.99229	4.02412
12 h after light	3.9643633333333335	3.9321300000000003	3.99954
4 h after dark	4.09767	3.9248199999999995	4.289619999999999
8 h after dark	3.9907933333333334	3.9548300000000003	4.01548
12 h after dark	4.069336666666667	3.99761	4.16938