\begin{table}%T6
\caption{The reactions whose 10~K rate coefficient has changed the most between the current and previous releases of the database. In most cases this is due to new data for the reaction being available. The reference codes follow our usual convention.}
 \label{tab:shakers}
\par
%\centering
\small
\begin{tabular}{lllllllll}
\hline \hline
 & \multicolumn{4}{c}{RATE06} & \multicolumn{4}{c}{RATE99}\\
 Reaction &  $\alpha$ & $\beta$ & $\gamma$ & Reference &  $\alpha$ & $\beta$ & $\gamma$ & Reference \\
\noalign{\smallskip}
\hline
%\noalign{\smallskip}
\multicolumn{9}{c}{Biggest rate coefficient decrease}\\
\noalign{\smallskip}
%\hline
%\noalign{\smallskip}
C$_2$H$_4$ + C$_3$H$_3^+\rightarrow$ C$_5$H$_5^+$ + H$_2$          & 1.10E--19 & 0.00  & 0.0    &   0001 & 1.10e--09 & 0.00  & 0.0    & HL89  \\
C$_2$H$_3$ + O$_2\rightarrow$ H$_2$CO + HCO             & 4.62E--12 & 0.00  & $-$171.0 & NIST & 2.73e--11 & $-$1.39 & 510.0  & NIST \\
OH + CO $\rightarrow$ CO$_2$ + H                  & 2.81E--13 & 0.00  & 176.0   & SH04 & 1.17e--13 & 0.95  & $-$74.0  & NIST  \\
H$^+$ + H $\rightarrow$ H$_2^+$ + $h\nu$              & 5.13E--19 & 1.85  & 0.0     & N/A & 1.00e--17 & 0.00  & 0.0    & PH80  \\
OH + OH $\rightarrow$ H$_2$O + O                  & 1.65E--12 & 1.14  & 50.0  & SH04 & 3.87e--13 & 1.69  & $-$469.0 & NIST \\
H + CH $\rightarrow$ C + H$_2$                    & 1.31E--10 & 0.00  & 80.0   & NIST & 2.70e--11 & 0.38  & 0.0    & HG93 \\
CH$_2^+$ + $h\nu \rightarrow$ CH$^+$ + H            & 4.60E--11 & 0.00  & 1.8     & VD06 & 1.70e--09 & 0.00  & 1.7    &  \\
\noalign{\smallskip}
\hline
\multicolumn{9}{c}{Biggest rate coefficient increase}\\
\noalign{\smallskip}
%\hline
O + NS$ \rightarrow$ SO + N                & 1.00E--11 & 0.00  & 0.0     & SH04  & 1.73e--11 & 0.50  & 4000.0 & MI84\\
O + C$_6$H$ \rightarrow $ C$_5$H + CO       & 1.70E--11 & 0.00  & 0.0    & SH04 & 1.00e--10 & 0.00  & 250.0  & HL89\\
O + C$_7$H$ \rightarrow $ C$_6$H + CO       & 1.70E--11 & 0.00  & 0.0    & SH04 & 1.00e--10 & 0.00  & 250.0  & HL89\\
O + C$_8$H$ \rightarrow $ C$_7$H + CO       & 1.70E--11 & 0.00  & 0.0    & SH04 & 1.00e--10 & 0.00  & 250.0  & HL89\\
O + C$_9$H$ \rightarrow $ C$_8$H + CO       & 1.70E--11 & 0.00  & 0.0    & SH04 & 1.00e--10 & 0.00  & 250.0  & HL89\\
O + C$_3$H$ \rightarrow $ CO + C$_2$H       & 1.70E--11 & 0.00  & 0.0    & SH04 & 1.00e--10 & 0.00  & 250.0  & HL89\\
O + C$_4$H$ \rightarrow $ C$_3$H + CO       & 1.70E--11 & 0.00  & 0.0    & SH04 & 1.00e--10 & 0.00  & 250.0  & HL89\\
O + C$_5$H$ \rightarrow $ C$_4$H + CO       & 1.70E--11 & 0.00  & 0.0    & SH04 & 1.00e--10 & 0.00  & 250.0  & HL89\\
N + C$_4$H$_2^+\rightarrow $ HC$_4$N$^+$ + H    & 9.50E--12 & 0.00  & 0.0    & 9902 & 1.00e--18 & 0.00  & 0.0    & \\
CN + O$_2 \rightarrow $ NO + CO            & 5.01E--12 & $-$0.46 & $-$8.0   & NIST & 5.30e--13 & 0.00  & 0.0    & \\
\hline
\end{tabular}
\end{table}