\begin{tabular}{rrrr}
  \hline
  Method & 
  Compression Ratio & 
  Compression Time & 
  Decompression Time \\
  \hline
  bib & 3.76 & 5.76 & 6.19 \\
  book1 & 4.12 & 5.86 & 6.42 \\
  book2 & 3.61 & 5.44 & 5.65 \\
  geo & 5.83 & 11.41 & 9.71 \\
  news & 4.19 & 6.01 & 6.31 \\
  obj1 & 4.04 & 8.05 & 7.46 \\
  obj2 & 3.27 & 5.48 & 5.57 \\
  paper1 & 3.62 & 5.65 & 6.16 \\
  paper2 & 3.63 & 5.44 & 5.72 \\
  pic & 0.96 & 2.77 & 3.32 \\
  progc & 3.43 & 5.70 & 5.97 \\
  progl & 2.25 & 3.96 & 4.40 \\
  progp & 2.27 & 4.17 & 4.65 \\
  trans & 2.84 & 4.73 & 5.13 \\
\end{tabular}
\caption{Results for ppmCnx-56 (sorted by file)}
