

{|c|c|r|r|r|r|r|}\hline
\begin{longtable}   \multicolumn{2}{|c|}{ } &    \multicolumn{5}{|c|}{Year}\\\hline
   \multicolumn{2}{|c|}{~} &            1968 &            1969 &            1970 &            1971 &            1972\\\hline
\endhead
   Mortality &    Std &            0.99 &            1.40 &            0.78 &            1.30 &            0.95\\\hline
   \multicolumn{1}{|l|}{~} &    Mean &            5.99 &            5.77 &            4.91 &            4.80 &            4.72\\\hline
\end{longtable}

