\begin{table}%t2
%\centering
\par
\caption{\label{tab:transfer}Contribution  of the state-to-state rate coefficients $R(j_1  \tau_1 j_2 \rightarrow j'_1 \tau'_1 j'_2)(T)$ with $j_2=1$ to $j'_2=3$ to the effective rate coefficients $\hat{R}_{j_2=1}(j_1 \tau_1 \rightarrow j'_1 \tau'_1)(T)$ for the four largest transitions with $\Delta j_2=+2$.}
\begin{tabular}{ccccc}
\hline\hline
Transitions / $T$(K)     &  200  &  400  &  1000  &  1500  \\\hline
    $6_{24}$ to $4_{22}$  &  9\%  &  24\%  &  38\%  &  42\%  \\
    $6_{15}$ to $4_{13}$  &  5\%  &  16\%  &  31\%  &  36\%  \\
    $7_{17}$ to $5_{15}$  &   4\%  &  12\% &  27\%  &  33\%  \\
    $4_{40}$ to $2_{20}$  &  7\%  &  16\%  &  24\%  &  27\%  \\
\hline
\end{tabular}
\end{table}