2000 0.414600 4000 0.332700 6000 0.318000 8000 0.313600 10000 0.304800 12000 0.302300 14000 0.294100 16000 0.295000 18000 0.292300 20000 0.291000 22000 0.287600 24000 0.287400 26000 0.285700