x data title , y data title
-10.681   ,  -4.14932696
-8.292  ,  -0.665670484
-25.482   ,  -3.775538869
-24.293   ,  -0.315713513
-36.929   ,  -4.215689714
-42.547   ,  -2.864580275
-49.196   ,  -8.841218073
-54.941   ,  -4.88540979
-63.0095  ,  -10.46740317
-69.0207  ,  -8.121834461
