15.9260475838707740.937862466921 16.0962694174463441.062137533079 16,4116.040258120023,40.955365997365816.0888304170073,41.062137533079 AAA 15.9448638790989,41.017503530444816.0962694174463,40.9531780560602 BBB 15.9260475838708,40.937862466921 CCC