// syst error // x y 8.310000 0.004093 15.700000 0.007525 28.799999 0.005299 49.299999 0.004883 78.300003 0.004788 117.099998 0.004042 167.600006 0.003632 234.199997 0.004614 298.600006 0.005949 350.600006 0.008898