\begin{table}%t5
\caption{Flux measurements for each energy bin in the combined spectral fit on data sets~I--III,
 as plotted in Fig.~\ref{fig:spec}b. The flux errors are error-propagated 68\% Feldman-Cousins confidence intervals \citep{feldman98}.}
\label{tab:crabpoints}
%\centering
\small
  \begin{tabular}{lccc}
\hline \hline
% & & & \\[-8pt]
Mean energy& Excess events  & Significance & Differential flux $\left(\frac{{\rm d}N}{{\rm d}E}\right)$\\
(TeV)      &                & $\sigma$     & (\dflux)              \\
\hline
% & & & \\[-8pt]
0.519   & 975           & 42.9         &$(1.81 + 0.06{-}0.06) \times 10^{-10}$\\
0.729   & 1580          & 56.0         &$(7.27 + 0.20{-}0.19) \times 10^{-11}$\\
1.06    & 1414          & 55.3         &$(3.12 + 0.09{-}0.09) \times 10^{-11}$\\
1.55    & 1082          & 47.3         &$(1.22 + 0.04{-}0.04) \times 10^{-11}$\\
2.26    & 762           & 39.5         &$(4.6  + 0.18{-}0.18) \times 10^{-12}$\\
3.3     & 443           & 29.5         &$(1.53 + 0.08{-}0.08) \times 10^{-12}$\\
4.89    & 311           & 24.9         &$(6.35 + 0.39{-}0.38) \times 10^{-13}$\\
7.18    & 186           & 19.6         &$(2.27 + 0.18{-}0.17) \times 10^{-13}$\\
10.4    & 86            & 13.1         &$(6.49 + 0.77{-}0.72) \times 10^{-14}$\\
14.8    & 36            &  8.1         &$(1.75 + 0.33{-}0.30) \times 10^{-14}$\\
20.9    & 23            &  7.5         &$(7.26 + 1.7{-}1.50) \times 10^{-15}$\\
30.5    & 4             &  2.9         &$(9.58 + 5.6{-}4.25) \times 10^{-16}$\\
\hline                                     
\end{tabular}
\end{table}