===  MC === 
  x min    x max      eff   -err   +err  
-------- --------    ----- ------ ------ 
   0.000    0.250    0.956 -0.956 +-0.115 
   0.250    0.500    0.882 -0.074 +0.049 
   0.500    0.750    0.919 -0.020 +0.015 
   0.750    1.000    0.911 -0.012 +0.011 
   1.000    1.250    0.913 -0.006 +0.006 
   1.250    1.500    0.916 -0.003 +0.003 
   1.500    1.750    0.918 -0.002 +0.002 
   1.750    2.000    0.923 -0.002 +0.002 
   2.000    2.250    0.924 -0.001 +0.001 
   2.250    2.500    0.928 -0.001 +0.001 
   2.500    2.750    0.929 -0.001 +0.001 
   2.750    3.000    0.926 -0.001 +0.001 
   3.000    3.250    0.925 -0.002 +0.002 
   3.250    3.500    0.919 -0.002 +0.002 
   3.500    3.750    0.913 -0.003 +0.003 
   3.750    4.000    0.901 -0.005 +0.005 
   4.000    4.250    0.901 -0.008 +0.008 
   4.250    4.500    0.881 -0.015 +0.014 
   4.500    4.750    0.896 -0.027 +0.021 
   4.750    5.000    0.892 -0.047 +0.034 


 ===  data === 
  x min    x max      eff   -err   +err  
-------- --------    ----- ------ ------ 
   0.000    0.250    1.000 -0.264 +0.000 
   0.250    0.500    0.878 -0.032 +0.027 
   0.500    0.750    0.874 -0.016 +0.014 
   0.750    1.000    0.857 -0.013 +0.012 
   1.000    1.250    0.894 -0.011 +0.010 
   1.250    1.500    0.889 -0.010 +0.009 
   1.500    1.750    0.892 -0.010 +0.009 
   1.750    2.000    0.890 -0.009 +0.008 
   2.000    2.250    0.884 -0.009 +0.008 
   2.250    2.500    0.881 -0.008 +0.008 
   2.500    2.750    0.893 -0.008 +0.008 
   2.750    3.000    0.906 -0.008 +0.007 
   3.000    3.250    0.906 -0.009 +0.008 
   3.250    3.500    0.892 -0.014 +0.013 
   3.500    3.750    0.896 -0.022 +0.019 
   3.750    4.000    0.864 -0.034 +0.029 
   4.000    4.250    0.907 -0.058 +0.039 
   4.250    4.500    1.000 -0.092 +0.000 
   4.500    4.750    0.818 -0.191 +0.117 
   4.750    5.000    1.000 -0.459 +0.000