condition	mean	min	max
4 h after light	3.8518233333333334	3.84445	3.8576599999999996
8 h after light	3.897356666666667	3.76559	4.0929
12 h after light	3.9025433333333335	3.8447400000000003	3.96259
4 h after dark	3.8137700000000003	3.7814	3.86513
8 h after dark	3.9091666666666662	3.8172099999999998	4.03872
12 h after dark	3.87924	3.7685699999999995	4.0294300000000005