\begin{table}%T5
\par
\caption{\label{tab:spectra-stats}Fraction of flat- and inverted-spectrum components in various
Seyfert samples.  The column~"$N_{\alpha>-0.3}$'' gives the number of
components with spectral indices~$\alpha>-0.3$ (i.e., components with
flat or inverted spectra).  The column~"$N_{\rm total}$'' gives the
total number of components in each sample.  The column~\% gives
$(N_{\alpha>-0.3}/N_{\rm total})\times100$.  The column~$P$ gives the
level of significance from a comparison of the fraction of flat- and
inverted-spectrum components in the VLBI~sample of this paper (limits
treated as detections), to that of each comparison sample at arcsec
resolution, using the difference-of-two-proportions test with Yates
correction for continuity (e.g., \citealt{Glanz1992}).}
%\centering
\par
\begin{tabular}{llrrrr}
\hline
\hline
Sample & &
\multicolumn{1}{c}{$N_{\alpha>-0.3}$} &
\multicolumn{1}{c}{$N_{\rm total}$} &
\multicolumn{1}{c}{\%} &
\multicolumn{1}{c}{$P$}\\
\hline
This paper                 & our obs + lit search  &  17 &  38 &  45\\
\cite{1987MNRAS.228..521U} & X-ray Seyferts        &   1 &  20 &   5 &  $  0.3$\%\\
\cite{1996ApJ...473..130R} & CfA Seyferts          &   3 &  46 & 6.5 &  $<$$0.1$\%\\
\cite{1996ApJ...473..130R} & 12 $\mu$m Seyferts    &   4 &  40 &  10 &  $<$$0.1$\%\\
\cite{1999AAS..137..457M}  & Distance limited      &  13 &  60 &  22 &  $ 1.8$\%\\
\cite{2001ApJS..133...77H} & Palomar Seyferts      &  21 &  45 &  47 &  $ 50$\%\\
\cite{1984ApJ...285..439U} & Distance limited      &   3 &  40 & 7.5 &  $<$$0.1$\%\\
\hline
\end{tabular}
\end{table}