      x1      x2      x3       y
   205.8    90.9    37.1   3.541
   404.8    92.9    36.3   2.397
   209.7   174.9    49.4   6.694
   401.6   187.2    44.9   4.722
   224.9    92.7   116.3   0.593
   402.6   102.2   128.9   0.268
   212.7   186.9   134.4   2.797
   406.2   192.6   134.9   2.451
   133.3   140.8    87.6   3.196
   470.9   144.2    86.9   2.021
     300    68.3    81.7   0.896
   301.6   214.6   101.7   5.084
   297.3   142.2    10.5   5.686
     314   146.7   157.1   1.193
   305.7     142      86   2.648
   300.1   143.7    90.2   3.303
   305.4   141.1    87.4   3.054
   305.2   141.5      87   3.302
   300.1      83    66.4   1.271
   106.6   209.6      33  11.648
   417.2    83.9    32.9   2.002
     251   294.4    41.5   9.604
   250.3     148    14.7   7.754
   145.1     291    50.2   11.59

