\begin{table}%t2
  \caption{Properties of the particle distribution at rain-out.
  \label{tab:rainout}}
\par
%\centerline
 {  \begin{tabular}{lllllll}
%   \multicolumn{6}{c}{\textsc{Rain-out parameters}}\\
    \hline
    \hline
    Model     &   $\langle a \rangle$   & $\langle m \rangle $          & \changed{$\langle \psi \rangle$} & $\langle a/a^* \rangle$ & $\langle t_{\rm rain} \rangle$     & $\langle t_{\rm 99\%} \rangle$     \\
              &   cm                    & gr                            &                         &                         & yr                                    & yr                                    \\
    (1)       &   (2)                   & (3)                           & \changed{(4)}           & (5)                     & (6)                                   & (7)               \\
    \hline                                                        
    R1Ta4-P   & $ 2.1\pm0.1$            & $1.4\pm0.1$                   & $(8.6\pm0.2)\times10^1$ & $4.4\pm0.0$             & $(4.7\pm 0.2)\times 10^3$             & $(4.5\pm 1.0)\times 10^4$     \\
    R1Ta4-C   & $ 2.4\times 10^{-2}$    & $(1.9\pm0.2)\times 10^{-4}$   & 1                       & 1                      & $(2.6\pm 0.1)\times 10^3$             & $(4.4\pm 0.3)\times 10^4$     \\
    R5Ta4-P   & $ 0.72\pm0.04 $         & $(1.4\pm0.1)\times 10^{-2}$   & $(1.1\pm0.1)\times10^2$ & $4.8\pm0.1$             & $(1.9\pm 0.1)\times 10^4$             & $(2.2\pm 0.3)\times 10^5$     \\
    R5Ta4-C   & $ 6.7\times 10^{-3} $   & $1.2\times 10^{-6}$           & 1                       & 1                       & $(8.1\pm 0.3)\times 10^3$             & $(2.1\pm 0.1)\times 10^5$     \\
    R1Ta2-P   & $ 7.8\pm 0.7$           & $(1.6\pm0.3)\times 10^3$      & $(3.9\pm1.1)$           & $1.6\pm 0.1$            & $(2.6\pm 0.3)\times 10^2$             & $(4.0\pm 19)\times 10^{5~a} $     \\
    R5Ta2-P   & $ 24 \pm 2$             & $(1.7\pm0.3)\times 10^3$      & $(3.6\pm0.1)\times10^1$ & $3.3$                   & $(1.4\pm 0.1)\times 10^3$             & $(4.5\pm 4.6)\times 10^{3~a}$     \\
    R1Ta6-P   & $ 2.1\times 10^{-2}$    & $1.3\times 10^{-6}$           & $(8.7\pm0.1)\times10^1$ & $4.4$                   & $(1.3\pm 0.1)\times 10^3$             & $2.3\times 10^6$     \\
    R5Ta6-P   & $ 1.3\times 10^{-3}$    & $(4.6\pm0.1)\times 10^{-10}$  & $(2.0\pm0.0)\times10^1$ & $2.7$                   & $61\pm 7.2$                           & $1.1\times 10^5$     \\
    \hline
  \end{tabular}}
\par
  \smallskip
        Entries denote: (1) model-id (see Table\ \ref{tab:runs}); (2) size at rain-out; (3) mass at rain-out; \changed{(4) enlargement factor at rain-out;} (5) size enhancement at rain-out; (6) time at which first rain-out occurs; (7) time-interval over which 99\% of the mass has rained-out. Values have been averaged over the 50 runs with the error bars reflecting the variations between the 50 runs of the simulation. (The spread is only given when the rms-value exceeds the second significant digit.)  
    $^a$    Some simulations did not achieve a 99\% rain-out of the density, so that $t_{\rm 99\%} > 10^7\ {\rm yr}$. This caused the large spread.
\end{table}