\begin{table}%t8
\caption {\label{tab-cluster}Average cluster abundances, obtained with the weighted average of the
single stars abundances.}             
%\centering
\par
\begin{tabular}{l c c c c c}     
\hline\hline 
Ratio           &  Cr~110         & NGC~2099        & NGC~2420        & M~67            & NGC~7789 \\ 
\hline
$[$Fe/H$]$      &  +0.03~$\pm$~0.02($\pm$0.10) &  +0.01~$\pm$~0.05($\pm$0.10) & --0.05~$\pm$~0.03($\pm$0.10) &  +0.05 $\pm$ 0.02($\pm$0.10) &  +0.04 $\pm$ 0.07($\pm$0.10) \\
$[\alpha$/Fe$]$ &  +0.01~$\pm$~0.03($\pm$0.07) &   0.00 $\pm$ 0.04($\pm$0.07) & --0.02 $\pm$ 0.03($\pm$0.07) & --0.02 $\pm$ 0.03($\pm$0.07) & --0.04~$\pm$~0.03($\pm$0.07) \\	
$[$Al/Fe$]$     & --0.04~$\pm$~0.02($\pm$0.05) & --0.06~$\pm$~0.03($\pm$0.05) & --0.10~$\pm$~0.01($\pm$0.05) &  +0.03~$\pm$~0.02($\pm$0.05) & --0.03~$\pm$~0.09($\pm$0.05) \\
$[$Ba/Fe$]$     &  +0.49~$\pm$~0.02($\pm$0.06) &  +0.57~$\pm$~0.02($\pm$0.06) &  +0.62~$\pm$~0.07($\pm$0.06) &  +0.25~$\pm$~0.02($\pm$0.06) &  +0.45~$\pm$~0.05($\pm$0.06) \\
$[$Ca/Fe$]$     & --0.07~$\pm$~0.02($\pm$0.03) & --0.08~$\pm$~0.01($\pm$0.03) & --0.09~$\pm$~0.02($\pm$0.03) & --0.16~$\pm$~0.03($\pm$0.03) & --0.18~$\pm$~0.09($\pm$0.03) \\ 
$[$Co/Fe$]$     &  +0.01~$\pm$~0.10($\pm$0.06) & --0.04~$\pm$~0.01($\pm$0.06) &  +0.03~$\pm$~0.06($\pm$0.06) &  +0.08~$\pm$~0.06($\pm$0.06) & --0.02~$\pm$~0.01($\pm$0.06) \\ 
$[$Cr/Fe$]$     &  +0.02~$\pm$~0.03($\pm$0.06) &  +0.02~$\pm$~0.03($\pm$0.06) & --0.03~$\pm$~0.03($\pm$0.06) &  +0.01~$\pm$~0.03($\pm$0.06) &  +0.01~$\pm$~0.05($\pm$0.06) \\ 
$[$La/Fe$]$ 	&  +0.03~$\pm$~0.18($\pm$0.09) &  +0.09~$\pm$~0.05($\pm$0.09) &  +0.23~$\pm$~0.09($\pm$0.09) &  +0.05~$\pm$~0.06($\pm$0.09) &  +0.11~$\pm$~0.05($\pm$0.09) \\ 
$[$Mg/Fe$]$ 	&  +0.16~$\pm$~0.07($\pm$0.10) &  +0.27~$\pm$~0.01($\pm$0.10) &  +0.09~$\pm$~0.06($\pm$0.10) &  +0.27~$\pm$~0.04($\pm$0.10) &  +0.22~$\pm$~0.07($\pm$0.10) \\ 
$[$Na/Fe$]$ 	& --0.06~$\pm$~0.05($\pm$0.04) &  +0.09~$\pm$~0.02($\pm$0.04) & --0.04~$\pm$~0.07($\pm$0.04) &  +0.08~$\pm$~0.09($\pm$0.04) & --0.05~$\pm$~0.13($\pm$0.04) \\ 
$[$Nd/Fe$]$ 	&  +0.23~$\pm$~0.20($\pm$0.10) &  +0.27~$\pm$~0.05($\pm$0.10) &  +0.19~$\pm$~0.17($\pm$0.10) &  +0.08~$\pm$~0.05($\pm$0.10) &  +0.17~$\pm$~0.30($\pm$0.10) \\ 
$[$Ni/Fe$]$ 	& --0.02~$\pm$~0.01($\pm$0.03) & --0.02~$\pm$~0.01($\pm$0.03) &  +0.00~$\pm$~0.02($\pm$0.03) &  +0.05~$\pm$~0.01($\pm$0.03) & --0.01~$\pm$~0.01($\pm$0.03) \\ 
$[$O/Fe$]$  	&  +0.03~$\pm$~0.08($\pm$0.08) &  +0.15~$\pm$~0.08($\pm$0.08) &  +0.15~$\pm$~0.18($\pm$0.08) &  +0.04~$\pm$~0.10($\pm$0.08) &  +0.16~$\pm$~0.06($\pm$0.08) \\ 
$[$Sc/Fe$]$ 	&  +0.01~$\pm$~0.13($\pm$0.08) & --0.03~$\pm$~0.03($\pm$0.08) &  +0.07~$\pm$~0.05($\pm$0.08) & --0.03~$\pm$~0.04($\pm$0.08) &  +0.08~$\pm$~0.02($\pm$0.08) \\ 
$[$Si/Fe$]$ 	&  +0.04~$\pm$~0.02($\pm$0.07) &  +0.09~$\pm$~0.03($\pm$0.07) &  +0.04~$\pm$~0.01($\pm$0.07) &  +0.10~$\pm$~0.02($\pm$0.07) & --0.01~$\pm$~0.02($\pm$0.07) \\ 
$[$Ti/Fe$]$ 	&  +0.02~$\pm$~0.04($\pm$0.06) & --0.08~$\pm$~0.04($\pm$0.06) & --0.04~$\pm$~0.08($\pm$0.06) & --0.04~$\pm$~0.06($\pm$0.06) & --0.03~$\pm$~0.09($\pm$0.06) \\ 
$[$V/Fe$]$  	&  +0.05~$\pm$~0.19($\pm$0.14) & --0.08~$\pm$~0.03($\pm$0.14) & --0.05~$\pm$~0.13($\pm$0.14) &  +0.15~$\pm$~0.13($\pm$0.14) & --0.01~$\pm$~0.09($\pm$0.14) \\ 
$[$Y/Fe$]$  	& --0.10~$\pm$~0.12($\pm$0.12) &  +0.07~$\pm$~0.06($\pm$0.12) &  +0.05~$\pm$~0.08($\pm$0.12) & --0.05~$\pm$~0.04($\pm$0.12) &  +0.08~$\pm$~0.09($\pm$0.12) \\ 
\hline             	  	 
\end{tabular}	   		 
\end{table}