\begin{table}
%%%\begin{center}
\par
%%\begin{tabular}{l|lcccll} \hline\hline\\\
 GJ873      &  M3.5      &  Single    &      ''              &    I               & ~~~~  ''         &     Lestrade et~al. (\cite{Lestrade2006})       \\ 
 GJ65       &  M5.5+M5.5 &  Binary    &     600~Myr          &    I               & ~~~~  ''         &        ''     \\  
 GJ3379     &  M4        &  Single    &      ''              &    I               & ~~~~    ''       &        ''             \\      
 GJ849      &  M3.5      &    ''      &      ''              &    I               & ~~~~   ''        &        ''            \\   
 GJ791.2    &  M4.5      &    ''      &      ''              &    I               & ~~~~   ''        &        ''            \\ 
 GJ109      &   M3.5     &    ''      &      ''              &    I  \& II        & ~~~~    ''        &    Lestrade et~al. (\cite{Lestrade2006}) and this work   \\\hline
 GJ699      &   M4.0     &  Single    &      1.82 pc         &    II              &   MAMBO     &      this work     \\  
 GJ406      &   M6.0     &    ''      &      2.38 pc         &    II              & ~~~~   ''        &         ''           \\            
 GJ411      &   M2.0     &    ''      &      2.54 pc         &    II              & ~~~~   ''         &         ''           \\
 GJ905      &   M5.5     &    ''      &      3.16 pc         &    II              & ~~~~   ''        &         ''           \\
 GJ725      &   M3+M3.5  &  Binary    &      3.57 pc         &    II              &  ~~~~  ''        &         ''           \\
 GJ54.1     &   M4.5     &  Single    &      3.72 pc         &    II              &  ~~~~  ''        &         ''           \\
 GJ273      &   M3.5     &    ''      &      3.79 pc         &    II              &  ~~~~  ''        &         ''           \\
 GJ83.1     &   M4.5     &    ''      &      4.44 pc         &    II              &  ~~~~   ''       &         ''           \\
 GJ687      &   M3.0     &    ''      &      4.53 pc         &    II              &  ~~~~   ''       &         ''           \\
 LHS292     &   M6.5     &    ''      &      4.54 pc         &    II              & ~~~~    ''       &         ''           \\
 GJ1002     &   M5.5     &    ''      &      4.69 pc         &    II              & ~~~~    ''       &         ''           \\
 GJ412      &   M2+M6    &  Binary    &      4.83 pc         &    II              & ~~~~   ''        &         ''           \\
 GJ388      &   M3.0     &  Single    &      4.89 pc         &    II              & ~~~~   ''        &         ''           \\
 GJ445      &   M3.5     &    ''      &      5.38 pc         &    II              & ~~~~   ''        &         ''           \\
 LHS1723    &   M4.5     &    ''      &      5.43 pc         &    II              & ~~~~   ''        &         ''           \\
 GJ526      &   M1.5     &    ''      &      5.43 pc         &    II              & ~~~~   ''        &         ''           \\
 GJ251      &   M3.0     &    ''      &      5.57 pc         &    II              & ~~~~   ''        &         ''           \\ 
 GJ205      &   M1.5     &    ''      &      5.71 pc         &    II              &  ~~~~  ''        &         ''           \\
 GJ213      &   M4.0     &    ''      &      5.87 pc         &    II              & ~~~~   ''        &         ''           \\  
 GJ908      &   M1.0     &    ''      &      5.93 pc         &    II              & ~~~~    ''       &         ''           \\
 GJ581      &   M3       &    ''      &      6.27 pc         &    II              &  ~~~~   ''       &         ''           \\
 GJ102      &   M4       &    ''      &      7.75 pc         &    II              & ~~~~    ''       &         ''           \\
\hline   
\end{tabular}}
\medskip
\par
Survey I was presented in Lestrade et~al. (\cite{Lestrade2006}) and  its data are 
 included in the statistical analysis of the present paper. Survey II is based on new data  with MAMBO-2 presented in the present paper.
Selection criteria are  ages $<$600~Myr for survey~I and the nearest M-dwarfs  but of undetermined ages for survey~II. 
Ages are based on Moving Groups (Local Association ($20{-}150$~Myr), IC~2391 ($35{-}55$~Myr), AB Dor (\mbox{100--125}~Myr), Castor (200~Myr), 
Ursa Maj (500~Myr)  and Hyades (600~Myr)) identified by Montes et~al. (\cite{Montes2001}) 
and Zuckerman \& Inseok Song (\cite{Zuckerman2004a}a,b). Some stars were observed in both surveys. 
\end{table}