\begin{table}%t3
%\centering
\par
\caption {Numbers of CN candidates located bottom of the bulge, top of the bulge, and bottom-to-top
ratio (BTR), within~90\arcsec, 150\arcsec, and 210\arcsec, respectively, of the nucleus of M~81
from this work, Shara et~al. (\cite{Shara99}), and Neill \& Shara (\cite{Neill04}). See text for details.
\label{tab6}}
\begin{tabular}{lccccccccccccc}
\hline
\hline\noalign{\smallskip}
 & & $d \leq 90\arcsec$ & && & & $d \leq 150\arcsec$ & && & & $d \leq 210\arcsec$ \\
 & Bottom & Top & BTR && & Bottom & Top & BTR & && Bottom & Top & BTR \\
\noalign{\smallskip}\hline\noalign{\smallskip}
This work, uncorrected & 16.0 & 16.0 & 1.00 & & &21.0 & 22.0 & 0.95 & & &25.0 & 27.0 & 0.93 \\
This work, corrected for effective coverage & 16.2 & 16.2 & 1.00 & & &21.3 & 22.3 & 0.96 & & &25.3 & 27.4 & 0.92 \\
Shara et~al. (\cite{Shara99}) & 1.0 & 1.0 & 1.00 & & &4.0 & 4.0 & 1.00 & && 9.0 & 5.0 & 1.80 \\
Neill \& Shara (\cite{Neill04}) & 2.0 & 4.0 & 0.50 & && 2.0 & 8.0 & 0.25 & & &3.0 & 8.0 & 0.38 \\
\hline 
\end{tabular}
\end{table}