\begin{table}%t2
%\centering
\par
\caption{\label{tab:FPvsE}Pulsed fraction~(PF) in different energy intervals  vs.~time, and $PF^{\rm total}_{\rm 0.5\div15}$~keV. Errors are  reported at 1$\sigma$ confidence level.}
\tiny 
\small \begin{tabular}{cccccccc} 
\hline \hline\noalign{\smallskip}
Epoch &$\rm PF_{0.5\div1~ keV}$ & $\rm PF_{1\div2~ keV}$ & $\rm PF_{2\div3~keV}$ &
$\rm PF_{3\div5~keV}$  & $\rm PF_{5\div8~keV}$  & $\rm PF_{8\div15~keV}$ & $\rm PF^{total}_{0.5\div15~keV}$\\
    &\% &\% &\% &\% & \%& \% &\%\\
\hline  
Sep. 2003& $ 35  \pm  2 $  &  $49.3 \pm 0.5$ & $57.0 \pm 0.8$ &  $58.7\pm  0.9$  
& $63\pm   3$ &$ 100  \pm 20$ &$52.4\pm0.4$\\
Mar. 2004& $ 25  \pm  1 $  &  $37.2 \pm 0.5$ & $42.1 \pm 0.8$ &  $51\pm 1$  
& $66\pm  3$ &$ 50 \pm 25$ &$42.0\pm0.4$\\
Sep. 2004& $ 27  \pm  1 $  &  $40.2 \pm 0.7$ & $49.6 \pm 0.7$&  $57.6\pm  0.9$  
& $63\pm   2$ &$ 50  \pm 12$ &$43.5\pm0.3$\\
Mar. 2005& $ 20  \pm  1 $  &  $33.1 \pm 0.6$ & $44   \pm 1$ &  $51  \pm  1$  
& $49\pm   5$ &$ 100  \pm 40$ &$34.8\pm0.4 $\\
Sep. 2005& $ 13  \pm  2 $  &  $27.2 \pm 0.9$ & $32   \pm 2$ &  $30.0  \pm  0.9$
& $60\pm  11$ &$ 60  \pm 30$ &$25.8\pm0.7$\\
Mar. 2006& $ 13  \pm  2 $  &  $30   \pm 1$ & $32   \pm 3$ &  $26  \pm  6$  
& $70\pm  29$ &$ 20  \pm 48$ &$26\pm1$\\
Sep. 2006& $ 16  \pm  1 $  &  $29.3 \pm 0.9$ & $42   \pm 3$ &  $90  \pm 72$  
& $90\pm  72$ &$ 40  \pm 41$ &$26\pm0.7$\\
Mar. 2007& $ 15  \pm  2 $  &  $32   \pm 1$ & $36   \pm 3$ &  $60  \pm  10$ 
& $30\pm  33$ &$ 40  \pm 10$ &$25\pm1$\\
Sep. 2007& $ 15  \pm  1 $  &  $28.1 \pm 0.7$ & $41   \pm 3$ &  $50  \pm 10$  
& $40\pm  50$ &$ 80  \pm 25$ &$24.5\pm0.6$\\
\hline 
\end{tabular}
\end{table}