\begin{table}%t4
\caption{\label{table:4}Multiplicity flags for WFI global mosaic star positions.}
%\centering
\par
\begin{tabular}{c c c c c c c}
\hline\hline \noalign{\smallskip}
       &    UCAC2    &   2MASS    &      Field   &  No    & Input     \\
       &   f1    f2    &   f1    f2   &    f3    f4        & flag   & entries   \\
Year   &  \% ~  \%    &  \%  ~ \%   &    \% ~ \%    &   \%   &           \\
\hline
2008   &  0.0 0.0  &  1.4 0.7  &  1.0 2.6   &  94.3  & 296~823  \\
2009   &  0.1 0.0  &  5.2 3.1  &  0.3 1.5   &  89.8  &  53~221  \\  
2010   &  0.0 0.0  &  0.4 0.6  &  1.3 1.6   &  96.1  & 378~236  \\             
2011   &  0.0 0.0  &  0.7 0.7  &  2.9 1.9   &  93.8  & 502~966  \\              
2012   &  0.0 0.0  &  0.3 0.8  &  3.1 2.1   &  93.7  & 672~564  \\              
2013   &  0.4 0.0  &  9.8 3.3  &  1.1 3.1   &  82.3  & 201~541  \\               
2014   &  1.8 0.1  & 13.0 4.7  &  2.1 3.5   &  74.8  & 159~725  \\               
2015   &  0.0 0.0  &  1.3 0.6  &  3.8 3.1   &  91.2  & 194~573  \\               
\hline
\end{tabular}
\tablefoot {Input entries give the number of mosaic positions before checking for multiplicity. Multiplicity flag percentages refer to the final number of positions, one per object. See text for details.}
\end{table}