\begin{table}%t2
\caption{\label{tab:dynamo}Magnetic quantities derived from the set of magnetic maps. }
%\centerline
 {\begin{tabular}{ccccccccccc}
\hline\hline
Fractional year               & $v_{\rm r}$          & $B_{\rm mean}$ & Pol. en.        & Dipole            & Quad.             & Oct.                  & Axi.                   & \omeq                    & \dom                    & $\log R'_{\rm HK}$ \\
                        & (\kms)                          & (G)                        & (\% tot)         & (\% pol)         & (\% pol)          & (\% pol)          &(\% tot)              & (\rpd)                        &  (\rpd)                  &                                   \\
\hline
2007.59               & $-26.86 \pm 0.03$ & $51\pm 6$          & $34\pm 1$   & $43\pm 8$   & $20\pm 2$     & $23 \pm 4$    & $73\pm 3$     & $0.71 \pm 0.01$ & $0.12\pm 0.03$  & --4.47 \\
2008. 67               & $-26.72 \pm 0.04$ & $59\pm 3$          & $39\pm 3$   & $36\pm 8$   & $18\pm 2$     & $19 \pm 4$    & $61 \pm 3$     & $0.71 \pm 0.01$ & $0.12 \pm 0.03$ & --4.47 \\
2009. 47               & $-26.48 \pm 0.03$ & $58\pm 8$          & $81\pm 2$   & $23\pm 7$   & $40\pm 2$     & $21 \pm 2$    & $36 \pm 12$  & $0.66 \pm 0.01$ & $0.12 \pm 0.02$ & --4.48 \\
\hline
\end{tabular}}
\par
\smallskip
Notes: we list the stellar radial velocity (with its associated rms), the mean unsigned magnetic field~($B_{\rm mean}$), the fraction of the large-scale magnetic energy reconstructed in the poloidal field component, the fraction of the {\it poloidal} magnetic energy in the dipolar ($\ell = 1$), quadrupolar ($\ell = 2$), and octopolar ($\ell = 3$) components, and the fraction of energy stored in the axisymmetric component ($m=0$). We also list the differential rotation parameters \omeq\ and \dom. The last column contains the $\log R'_{\rm HK}$ values derived from our sets of Stokes~$I$ spectra. Values for 2007 are taken from P08, except for the $\log R'_{\rm HK}$ value which was recalculated using a new calibration of NARVAL measurements against Mount Wilson estimates (Wright et~al. \cite{Wright04}), involving~29 solar-type dwarfs.
\end{table}