y          x
           0.1        0.2
         338.8      337.4
         118.1      118.2
         888.0      884.6
           9.2       10.1
         228.1      226.5
         668.5      666.3
         998.5      996.3
         449.1      448.6
         778.9      777.0
         559.2      558.2
           0.3        0.4
           0.1        0.6
         778.1      775.5
         668.8      666.9
         339.3      338.0
         448.9      447.5
          10.8       11.6
         557.7      556.0
         228.3      228.1
         998.0      995.8
         888.8      887.6
         119.6      120.2
           0.3        0.3
           0.6        0.3
         557.6      556.8
         339.3      339.1
         888.0      887.2
         998.5      999.0
         778.9      779.0
          10.2       11.1
         117.6      118.3
         228.9      229.2
         668.4      669.1
         449.2      448.9
           0.2        0.5