\begin{table}%t2
 \caption{Fitted position angles and mean dispersion in distances for
the different latitude ranges.}
\label{tabla2}
%\centering
\small
    \begin{tabular}{ccccc}
\hline \hline
 $b$ range & $N$ & $\phi_{\rm bar}$ ($^\circ$) & $\phi_{\rm bulge}$ ($^\circ$) &
$\langle\sigma\rangle$ (kpc)\\
\hline
$|b|<1^\circ$ & 14 & 40.5 $\pm$ 3.9 & -- & 0.48 $\pm$ 0.04\\
$|b|=1^\circ$ & 15 & 43.4 $\pm$ 3.5 & 21.9 $\pm$ 1.0 & 0.55 $\pm$ 0.09\\
$|b|=2^\circ$ & 7 & 44.1 $\pm$ 2.8 & 25.1 $\pm$ 2.7 & 0.51 $\pm$ 0.03\\
$|b|\ge3.5^\circ$ &13 & -- & 30.7 $\pm$ 5.2 & 0.45 $\pm$ 0.02\\
$|b|=3.5^\circ$ &3&  -- & 21.6 $\pm$ 3.9& --\\
$|b|=5^\circ$ & 8 & -- & 31.5 $\pm$ 3.5 & --\\
\hline
 \end{tabular}
\end{table}