\begin{table} %t10
\begin{minipage}{90mm}
\caption{\label{fitioni} Fitting parameters of ionisation-parameter distribution\protect\footnote{A linear least-squares fit was applied with $\log~$$U_{\log~(n_{\rm e}) = 2, \rm obs}$ = $\delta \cdot
\log R/R_0 + \log~$$U_{0}$. 
$U_{0}$ 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 column 2 (= half the number of averaged values from both sides of
the nucleus). For \object{NGC~1386} which shows a transition between line
ratios typical for AGNs and \ion{H}{ii}-regions, only data points within the NLR
were included. For
\object{ESO~362-G008}, too few data points were available for a fit.
For \object{NGC~3281} and \object{IC~5063},
no fit was applied as the ionisation parameter does not peak in the centre. For
\object{NGC~5643}, the [\ion{O}{ii}] line was not covered by the observations.
}.}
%\centering
\small \def\footnoterule{}
\begin{tabular}{lccc} 
\hline
\hline 
\multicolumn{1}{c}{Galaxy} & Data points & $\delta$ & $\log U_{0}$\\[0.25ex]
\hline\\[-2.3ex]
\object{NGC~7212} & 4  & $-$0.43 $\pm$ 0.08 & $-$2.1  \\
\object{NGC~1386} & 6  & $-$0.58 $\pm$ 0.03 & $-$2.7\\ 
\hline 
\end{tabular} 
\end{minipage}
\end{table}