\begin{table}%t9
\begin{minipage}{90mm}
 \caption
{\label{fitden} Fitting parameters of electron-density distribution\protect\footnote{A linear least-squares fit was applied with 
$\log$ $n_{\rm e, obs}$ = $\delta \cdot
\log R/R_0 + \log n_{{\rm e}, 0 \rm obs}$. 
$n_{{\rm e}, 0}$ corresponds to the value at $R_0 = 100$~pc distance
from the centre.
The number of data points included in the fit is
given in Col.~2 (=half the number of averaged values from both sides of
the nucleus). 
For those objects which show a transition between line
ratios typical for AGNs and \ion{H}{ii}-region like ones in the diagnostic
diagrams, determining the size of the NLR, only data points within the NLR
were included (\object{NGC~5643} and \object{NGC~1386}).}}
%\centering
\small\def\footnoterule{}
\begin{tabular}{lccc} 
\hline
\hline 
\multicolumn
{1}{c}{Galaxy} & Data points & $\delta$ & $\log n_{{\rm e}, 0}$ (cm$^{-3}$)\\[0.25ex]
\hline\\[-2.3ex]
\object{IC~5063} & 6   & $-$1.08 $\pm$ 0.25 & 3.1 \\
\object{NGC~7212} & 4  & $-$1.33 $\pm$ 0.15 & 4.1 \\
\object{NGC~3281} & 3  & $-$0.84 $\pm$ 0.08 & 3.1  \\
\object{NGC~5643} & \hspace*{-0.2cm}10 & $-$1.22 $\pm$ 0.30  & 3.0 \\
\object{NGC~1386} & 5  & $-$1.23 $\pm$ 0.09 & 2.4 \\[0.1ex]
\hline\\[-2.3ex]
\end{tabular} 
\end{minipage}
\end{table}