Usage of Ifpack_AnalyzeMatrixElements()

The output of function Ifpack_AnalyzeMatrixElements() applied to matrix fidap019.rua is as reported below.
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Label of matrix = Epetra::CrsMatrix

Elements in [-1.361693e+07, -9.502017e+06) =         48 ( =  0.02 %)
Elements in [-9.502017e+06, -5.387105e+06) =        220 ( =  0.08 %)
Elements in [-5.387105e+06, -1.272193e+06) =       2396 ( =  0.92 %)
Elements in [-1.272193e+06, +2.842719e+06) =     255985 ( = 98.51 %)
Elements in [+2.842719e+06, +6.957631e+06) =        939 ( =  0.36 %)
Elements in [+6.957631e+06, +1.107254e+07) =        149 ( =  0.06 %)
Elements in [+1.107254e+07, +1.518745e+07) =         69 ( =  0.03 %)
Elements in [+1.518745e+07, +1.930237e+07) =         36 ( =  0.01 %)
Elements in [+1.930237e+07, +2.341728e+07) =         15 ( =  0.01 %)
Elements in [+2.341728e+07, +2.753219e+07) =          5 ( =  0.00 %)
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Generated on Wed May 12 21:30:18 2010 for IFPACK by  doxygen 1.4.7