\begin{table}%t5
\caption{\label{tab5}Comparison of lifetimes ($\tau$ in~s) for levels of Cr~{\sc viii}. $a \pm b \equiv a \times 10^{{\pm}b}$.}
\par
\small%\centerline
 { {
\begin{tabular}{rllrrrrrr} 
\hline
\hline
Index & Configuration                       & Level                 	 & GRASP	  & FAC      & CIV3     & MCHF      \\
\hline 
%&&&&&&&& \\[-8pt]
   2  & 3s$^2$3p$^5$			     &  $^2$P$^{\circ}$$_{1/2 }$  	 &   5.878-02  &	       &	  & 8.2860-02  \\
   3  & 3s3p$^6$			     &  $^2$S	 $_{1/2 }$  	 &   3.275-10  &      3.260-10 & 4.47-10  & 3.1741-10  \\
   4  & 3s$^2$3p$^4$($^3$P)3d		     &  $^4$D	 $_{7/2 }$  	 &   2.935-02  &	       &	  & 2.9800-02  \\
   5  & 3s$^2$3p$^4$($^3$P)3d		     &  $^4$D	 $_{5/2 }$  	 &   3.379-07  &      3.322-07 & 1.04-05  & 5.4181-07  \\
   6  & 3s$^2$3p$^4$($^3$P)3d		     &  $^4$D	 $_{3/2 }$  	 &   3.975-07  &      4.067-07 & 1.26-06  & 5.4729-07  \\
   7  & 3s$^2$3p$^4$($^3$P)3d		     &  $^4$D	 $_{1/2 }$  	 &   3.414-07  &      3.306-07 & 3.22-07  & 4.2018-07  \\
   8  & 3s$^2$3p$^4$3d  		     &  $^4$F	 $_{9/2 }$  	 &   1.984-01  &	       &	  & 1.0682+02  \\
   9  & 3s$^2$3p$^4$($^1$D)3d		     &  $^2$P	 $_{1/2 }$  	 &   4.025-09  &      4.251-09 & 5.01-09  & 5.0632-09  \\
  10  & 3s$^2$3p$^4$($^3$P)3d		     &  $^4$F	 $_{7/2 }$  	 &   1.671-01  &	       &	  & 1.2429-00  \\
  11  & 3s$^2$3p$^4$($^3$P)3d		     &  $^4$F	 $_{5/2 }$  	 &   5.783-08  &      5.583-08 & 9.46-08  & 8.2834-08  \\
  12  & 3s$^2$3p$^4$($^3$P)3d		     &  $^4$F	 $_{3/2 }$  	 &   5.414-08  &      4.277-08 & 8.24-07  & 5.4704-08  \\
  13  & 3s$^2$3p$^4$($^1$D)3d		     &  $^2$P	 $_{3/2 }$  	 &   2.635-09  &      2.810-09 & 2.25-08  & 3.4637-09  \\
  14  & 3s$^2$3p$^4$($^1$D)3d		     &  $^2$D	 $_{3/2 }$  	 &   3.916-09  &      4.233-09 & 1.33-09  & 4.9827-09  \\
  15  & 3s$^2$3p$^4$($^3$P)3d		     &  $^4$P	 $_{1/2 }$  	 &   7.041-09  &      6.951-09 & 7.55-09  & 9.7735-09  \\
  16  & 3s$^2$3p$^4$($^3$P)3d		     &  $^4$P	 $_{3/2 }$  	 &   2.345-07  &      2.545-07 & 3.69-08  & 2.5223-07  \\
  17  & 3s$^2$3p$^4$($^3$P)3d		     &  $^4$P	 $_{5/2 }$  	 &   9.225-09  &      1.037-08 & 2.41-07  & 1.3899-08  \\
  18  & 3s$^2$3p$^4$($^1$D)3d		     &  $^2$D	 $_{5/2 }$  	 &   1.506-08  &      1.620-08 & 1.41-09  & 1.3705-08  \\
  19  & 3s$^2$3p$^4$($^3$P)3d		     &  $^2$F	 $_{7/2 }$  	 &   3.346-02  &	       &	  & 8.8170-02  \\
  20  & 3s$^2$3p$^4$3d  		     &  $^2$G	 $_{9/2 }$  	 &   3.979-02  &	       &	  & 1.6472-00  \\
  21  & 3s$^2$3p$^4$($^1$D)3d		     &  $^2$G	 $_{7/2 }$  	 &   3.687-02  &	       &	  & 1.5809-01  \\
  22  & 3s$^2$3p$^4$($^3$P)3d		     &  $^2$F	 $_{5/2 }$  	 &   1.075-07  &      1.189-07 & 8.42-08  & 1.7265-07  \\
  23  & 3s$^2$3p$^4$($^1$D)3d		     &  $^2$F	 $_{5/2 }$  	 &   1.229-08  &      1.193-08 & 1.83-08  & 1.7380-08  \\
  24  & 3s$^2$3p$^4$($^1$D)3d		     &  $^2$F	 $_{7/2 }$  	 &   1.276-02  &	       &	  & 4.0087-01  \\
  25  & 3s$^2$3p$^4$($^1$S)3d		     &  $^2$D	 $_{3/2 }$  	 &   2.539-09  &      2.540-09 & 1.87-09  & 3.1405-09  \\
  26  & 3s$^2$3p$^4$($^1$S)3d		     &  $^2$D	 $_{5/2 }$  	 &   8.733-09  &      1.100-08 & 6.75-08  & 2.6316-08  \\
  27  & 3s$^2$3p$^4$($^1$D)3d		     &  $^2$S	 $_{1/2 }$  	 &   6.828-12  &      6.955-12 & 6.70-12  & 6.5622-12  \\
  28  & 3s$^2$3p$^4$($^3$P)3d		     &  $^2$P	 $_{3/2 }$  	 &   6.922-12  &      7.027-12 & 7.28-12  & 7.0259-12  \\
  29  & 3s$^2$3p$^4$($^3$P)3d		     &  $^2$P	 $_{1/2 }$  	 &   7.049-12  &      7.160-12 & 7.14-12  & 7.1292-12  \\
  30  & 3s$^2$3p$^4$($^3$P)3d		     &  $^2$D	 $_{5/2 }$  	 &   5.863-12  &      5.977-12 & 6.14-12  & 5.7851-12  \\
  31  & 3s$^2$3p$^4$($^3$P)3d		     &  $^2$D	 $_{3/2 }$  	 &   5.935-12  &      6.055-12 & 6.22-12  & 5.8391-12  \\[2pt]
\hline
\end{tabular}}}
\medskip
GRASP: present calculations from the {\sc grasp} code;
FAC:  present calculations from the {\sc fac} code;
CIV3:  calculations of Mohan et~al. (\cite{mm1}) from the {\sc civ}3~code;
MCHF:  calculations of Froese~Fischer et~al. (\cite{cff}) from the {\sc mchf}~code.
\end{table}