\begin{table}%T6
%\centering
\par
\caption{Asymmetric drift $V_{\rm lag}$ and standard deviation of $U$, $V$,
$W$ for the $27$ SPY thick-disk
white dwarfs, $V_{\rm lag}$, $\sigma_{U}$, $\sigma_{V}$, 
and $\sigma_{W}$
from \citet{soubiran03}, and \citet{chiba00} are shown for 
comparison. \label{uvw_ditab}}
\begin{tabular}{lcccc}
\hline\hline
 &$V_{\rm lag}$ & $\sigma_{U}$ & $\sigma_{V}$ & $\sigma_{W}$\\
 &${\rm km~s^{-1}}$ & ${\rm km~s^{-1}}$ & ${\rm km~s^{-1}}$ & ${\rm km~s^{-1}}$\\
\hline
Thick-disk WDs &     &      & \\
(our sample)& $-51$ & $79$ & $36$ & $46$\\
%\hline
Thick-disk stars        &       &      &      &\\
(Soubiran et al.) & $-51$ & $63$ & $39$ & $39$\\
%\hline
Thick-disk stars     &       &      &      &\\
(Chiba \& Beers) & $-20$ & $46$ & $50$ & $35$\\
\hline
\end{tabular}
\end{table}