\begin{tabular}{rrrr}
  \hline
  Method & 
  Compression Ratio & 
  Compression Time & 
  Decompression Time \\
  \hline
  bib & 3.51 & 8.52 & 10.33 \\
  book1 & 3.78 & 8.39 & 10.06 \\
  book2 & 3.34 & 7.68 & 9.02 \\
  geo & 5.42 & 22.78 & 26.18 \\
  news & 3.93 & 9.67 & 11.98 \\
  obj1 & 3.87 & 15.22 & 18.01 \\
  obj2 & 3.09 & 10.41 & 11.80 \\
  paper1 & 3.37 & 8.29 & 9.72 \\
  paper2 & 3.35 & 8.06 & 9.47 \\
  pic & 0.91 & 3.70 & 4.45 \\
  progc & 3.21 & 8.24 & 10.03 \\
  progl & 2.11 & 5.30 & 6.55 \\
  progp & 2.13 & 5.68 & 6.93 \\
  trans & 2.68 & 7.07 & 8.24 \\
\end{tabular}
\caption{Results for ppmC-56 (sorted by file)}
