\begin{table}%t5
%\centering
\par
\caption{\label{tab:calerr}Statistics of the ratio of the calibration error residuals  (i.e. difference between noiseless maps with and without calibration errors) to the expected white noise variance in each pixel.}
\begin{tabular}{ccccc}
\hline \hline\noalign{\smallskip}
Averaging time & Stokes & rms & Min & Max \\
\hline
1 h  & $I$ & 0.033 & $-$$1.72$  & 2.05 \\ 
1 h  & $Q$ & 0.030 & $-$$1.34$  & 1.25 \\
1 h  & $U$ & 0.030 & $-$$1.55$  & 1.20 \\
6 days & $I$ & 0.016 & $-$$0.26$  & 0.64 \\
6 days & $Q$ & 0.011 & $-$$0.17$  & 0.36 \\
6 days & $U$ & 0.011 & $-$$0.47$  & 0.40 \\
\hline
\end{tabular}
\end{table}