\begin{table}%t2
\caption{Normalized effective rate coefficients for flat olivine$^{1}$ and amorphous carbon$^{2}$ surfaces.}\label{er}
%\centering
\small
\begin{tabular}{l c c c c c c c c c c c }
\hline \hline
 & & & & & & & & & & & \\[-8pt]
 $f/f_{0}$  & 10 K$^1$ & 10 K$^2$ & 11 K$^2$ & 12 K$^2$ & 13 K$^2$ & 14 K$^2$ & 15 K$^2$ & 16 K$^2$ & 17 K$^2$ & 18 K$^2$ & 19 K$^2$  \\ \hline
1  & 0.29    & 1.0     & 0.94    & 0.70    & 0.53    & 0.43    & 0.36    & 0.33    & 0.31  & 0.31 & 0.34\\ 
2  & 0.31    & 1.0     & 0.98    & 0.74    & 0.56    & 0.45    & 0.38    & 0.34    & 0.31 & 0.31 & 0.39 \\ 
3  & 0.30    & 1.0     & 0.99    & 0.77    & 0.58    & 0.46    & 0.40    & 0.34    & 0.32 & 0.32 & 0.33 \\ 
4  & 0.30    & 1.0     & 1.0     & 0.78    & 0.59    & 0.47    & 0.40    & 0.35    & 0.32 & 0.32 & 0.34 \\ 
5  & 0.31    & 1.0     & 1.0     & 0.81    & 0.60    & 0.48    & 0.41    & 0.35    & 0.32 & 0.32 & 0.29 \\ 
6  & 0.31    & 1.0     & 1.0     & 0.81    & 0.60    & 0.49    & 0.41    & 0.36    & 0.33 & 0.32 & 0.31 \\ 
7  & 0.31    & 1.0     & 1.0     & 0.81    & 0.62    & 0.50    & 0.41    & 0.36    & 0.33 & 0.32 & 0.33 \\ 
8  & 0.31    & 1.0     & 1.0     & 0.82    & 0.63    & 0.50    & 0.41    & 0.37    & 0.33  & 0.31 & 0.34\\ 
9  & 0.31    & 1.0     & 1.0     & 0.84    & 0.64    & 0.50    & 0.42    & 0.37    & 0.34  & 0.32 & 0.33\\ 
10 & 0.31    & 1.0     & 1.0     & 0.84    & 0.64    & 0.51    & 0.42    & 0.37    & 0.34 & 0.32 & 0.33  \\ 
15 & 0.32    & 1.0     & 1.0     & 0.86    & 0.66    & 0.52    & 0.44    & 0.38    & 0.34  & 0.32 & 0.32\\ 
20 & 0.33    & 1.0     & 1.0     & 0.88    & 0.68    & 0.54    & 0.44    & 0.39    & 0.35 & 0.32 & 0.33 \\ 
25 & 0.33    & 1.0     & 1.0     & 0.89    & 0.69    & 0.54    & 0.45    & 0.39    & 0.35  & 0.33 & 0.33\\ 
30 & 0.33    & 1.0     & 1.0     & 0.91    & 0.70    & 0.56    & 0.45    & 0.39    & 0.36 & 0.33 & 0.32 \\ 
\hline
\end{tabular}
\end{table}