\begin{table}%t3
\caption{Cumulated reconnection fluxes and ratio of positive to negative flux at
the end of the analyzed time interval. Fluxes are given in units of $10^{21}$~Mx.
Fluxes in the flare on 2003 November 18, may be higher, since it was not possible
to analyze the event up to the end of the impulsive phase due to gaps in the TRACE
data after $\sim$08:24~UT. Error estimates in $\varphi_{\rm{tot}}$ are obtained from
the lowest and highest of the appropriate intensity thresholds (see
Sect.~\ref{sec:analysis} for more detail).} \label{tab:3}
%\centering
$$
\begin{tabular}{c c c c c c c}
  \hline \hline
    & GOES &  &  &   &   \\
  \raisebox{1.2ex}[-1.2ex]{Date} & class & \raisebox{1.2ex}[-1.2ex]{$\varphi_+$}
    & \raisebox{1.2ex}[-1.2ex]{$\varphi_-$}& \raisebox{1.2ex}[-1.2ex]{$\varphi_{\rm{tot}}$}
    &  \raisebox{2ex}[-2ex]{$\frac{\varphi_+}{|\varphi_-|}$}   \\
  \hline
    2003 Oct. 28 & X17.2& 15.6 & --15.3  & 15.5 $\pm$ 0.8 & 1.02\\
    2003 Nov. 18 & M3.9 & $>$2.2 & $>$--2.4  & $>$2.3 $\pm$ 0.2 & 0.91\\
    2005 Jan. 15 & X2.6 & 5.2 & --3.9  & 4.5 $\pm$ 0.4& 1.35\\
    2006 Jul. 06 & M2.5 & 2.7 & --2.5  & 2.6 $\pm$ 0.4& 1.06\\
    2007 May 19 & B9.5 & 1.4 & --2.2  &  1.8  $\pm$  0.2& 0.64\\
  \hline
\end{tabular}
$$
\end{table}