\begin{table}%t4
  \caption{Overview on MBP lifetimes in earlier studies.}
 %%\centerline

{\begin{tabular}{l l}
   \hline\hline
  Paper &  Reported MBP lifetime [min]\\
    \hline
    \citet{2008ApJ...684.1469D}& 10\\
 \citet{2006SoPh..237...13M} &  4.4 ($\pm 2.4$)\\
 \citet{2005AA...441.1183D}& 3.5\\
  \citet{2004ApJ...609L..91S}&  $<$10\\
   \citet{1996ApJ...463..365B} &  $\sim$$(6{-}8)$\\
   this study & 2.5\\
  \hline
  \end{tabular}}
\par
\tablefoot{In \citet{2008ApJ...684.1469D} magnetograms were used for the identification of the small-scale magnetic fields (instead of MBPs).}
  \label{tablelifetimes2}
\end{table}