\begin{tabular}{rrrr}
  \hline
  Method & 
  Compression Ratio & 
  Compression Time & 
  Decompression Time \\
  \hline
  bib & 1.93 & 9.64 & 10.22 \\
  book1 & 2.54 & 11.25 & 12.27 \\
  book2 & 2.04 & 9.39 & 10.46 \\
  geo & 4.96 & 60.11 & 69.92 \\
  news & 2.44 & 12.88 & 14.88 \\
  obj1 & 3.71 & 29.36 & 33.47 \\
  obj2 & 2.35 & 19.47 & 21.77 \\
  paper1 & 2.40 & 10.78 & 12.39 \\
  paper2 & 2.40 & 10.79 & 12.47 \\
  pic & 0.94 & 5.42 & 6.39 \\
  progc & 2.42 & 10.96 & 12.91 \\
  progl & 1.67 & 8.02 & 8.27 \\
  progp & 1.72 & 7.37 & 8.48 \\
  trans & 1.47 & 6.80 & 7.74 \\
\end{tabular}
\caption{Results for ppmD7 (sorted by file)}
