\begin{table}%t2
\caption{\label{tab_rad}Radiative decay rates ($A_{i,j}$ for $i\leftarrow j$ transition in units of~s$^{-1}$) for transitions to the ground level.}
\small%\centerline
 {
\begin{tabular}{ccccc}
\hline\hline
&&&& \\[-8pt]
{\rm low} & {\rm upper} & AS${^a}$ & ZS94${^b}$ &
NIST${^c}$ \\ 
\hline
&&&& \\[-8pt]
  1  &   3 &  3.267(05)$^d$ &  3.020(05)  & 2.99(05) \\
  1  &   6 &  1.964(09) &  1.850(09)  & 1.91(09) \\
  1  &   8 &  5.185(09) &  4.940(09)  & 5.07(09) \\
  1  &   9 &  9.271(09) &  8.850(09)  & 9.23(09) \\
  1  &  10 &  2.781(09) &  2.740(09)  & 2.78(09) \\
  1  &  16 &  5.509(10) &  4.386(10)  &          \\
  1  &  19 &  8.032(11) &  7.378(11)  & 8.15(11) \\
  1  &  26 &  1.262(11) &  1.063(11)  &          \\
  1  &  27 &  3.009(10) &  2.922(10)  &          \\
  1  &  28 &  1.586(11) &  1.163(11)  & 2.66(11) \\
  1  &  29 &  5.266(10) &  3.723(10)  & 7.27(10) \\
  1  &  32 &  1.582(09) &  1.293(09)  &          \\
  1  &  33 &  5.395(08) &  6.594(08)  &          \\
  1  &  34 &  3.205(08) &  2.747(08)  &          \\
  1  &  36 &  3.433(11) &  3.217(11)  & 3.61(11) \\
  1  &  41 &  1.290(11) &  1.400(11)  & 1.29(11) \\
  1  &  58 &  6.518(10) &  9.096(10)  &          \\
  1  &  59 &  2.365(09) &  1.386(09)  &          \\
  1  &  60  & 4.053(10)  & 4.827(10) &           \\
  1  &  62  & 2.720(10)  & 1.353(10) &  2.15(10) \\
  1  &  63  & 3.811(08)  & 2.987(08) &           \\
  1  &  64  & 4.958(06)  & 6.865(06) &           \\
  1  &  70  & 2.789(10)  & 3.705(10) &           \\
  1  &  71  & 8.517(09)  & 1.103(10) &           \\
  1  &  79  & 4.453(09)  & 6.434(09) &           \\
  1  &  95  & 9.367(08)  & 1.969(09) &           \\
  1  &  96  & 6.778(08)  & 1.574(09) &           \\
  1  &  98  & 6.217(08)  & 7.689(08) &           \\
  1  & 100  & 4.124(09)  & 7.050(09) &           \\
  1  & 108  & 2.976(09)  & 3.747(09) &           \\
  1  & 111  & 1.482(10)  & 3.010(10) &           \\
  1  & 115  & 8.574(09)  & 1.538(10) &           \\
  1  & 119  & 9.798(09)  & 1.579(10) &           \\
  1  & 120  & 2.011(09)  & 3.116(09) &           \\
  1  & 121  & 1.649(09)  & 5.421(09) &           \\
  1  & 125  & 1.955(09)  & 4.028(09) &           \\
\hline
\end{tabular}}
\medskip
$^{a}$ {\sc autostructure} (present work);
$^{b}$ Zhang \& Sampson (\cite{ZS94});
$^{c}$~NIST~v3 (from Cavalcanti et~al. \cite{CLT00});
$^{d}$ ($m$) denotes $\times10^m$.
\end{table}