The mean relative errors in Table confirm this picture. ( ) s G T with arithmetic mean frequency has a mean relative error of 3% no matter N. The mean relative error of ( ) s B T also with arithmetic mean frequency is a bit bigger, 8%. The mean relative errors with harmonic means are always larger than those with arithmetic mean. They are also dependent on the system size, reducing for bigger N. It is not shown in the table, but most of the error when using the harmonic mean frequency is