\begin{table}%t2
%\centering
\caption{\label{chiagain}The table lists the average values of the reduced $\chi^{2}$-values.}
\begin{tabular}{lccccc}
\hline\hline
Linear regression    & Data &$\nu$ [GHz] &Time span& $\chi^{2}_{\rm red}$&Number of data points\\
\hline
``stationary scenario'' & Meyer (2007) & 22  & 1995.15--1996.90&0.015&10\\
Bach et~al. (\cite{Bach05})    & Bach et~al. (\cite{Bach05}) & &1995.15--1996.90&0.016&29\\
\hline
\end{tabular}
\end{table}