\begin{table}%t7
%\centering
\par
\caption{\label{tab:under}Levels involved in some of the transitions largely underestimated by  scaled He calculations and to a lesser extent by QCT calculations at 100~K. We provide ratios of averaged CC rate coefficients over QCT and scaled He calculations at 100~K, as well as the values of the corresponding averaged CC rate coefficients (in cm$^3$~s$^{-1}$).}
\small \begin{tabular}{cccccc}
\hline\hline
Transitions  & Initial Level & Final Level & CC value & Ratios (CC/QCT) & Ratios (CC/He) \\
\hline
127 & 17 & 7  & 8.5e-12 & 7  & 66 \\
144 & 18 & 8  & 9.9e-12 & 7  & 68 \\
180 & 20 & 9  & 8.3e-12 & 7  & 32 \\
223 & 22 & 13 & 7.5e-11 & 30 & 191 \\
268 & 24 & 15 & 6.3e-11 & 7  & 55 \\
313 & 26 & 13 & 6.1e-11 & 36 & 142 \\
425 & 30 & 19 & 1.5e-10 & 20 & 328\\
456 & 31 & 21 & 7.4e-11 & 17 & 15 \\
487 & 32 & 22 & 4.9e-11 & 9  & 42 \\
519 & 33 & 23 & 2.3e-10 & 15 & 38 \\
553 & 34 & 25 & 1.8e-10 & 91 & 45 \\
583 & 35 & 22 & 1.9e-10 & 59 & 1800\\
619 & 36 & 24 & 2.2e-10 & 39 & 773\\
690 & 38 & 24 & 3.4e-11 & 18 & 683\\
732 & 39 & 29 & 3.4e-10 &100 & 142 \\
\hline
\end{tabular}
\end{table}