\begin{table}%t2
%\centering
\par
\caption{\label{tab2}Results of the $\chi^2$ fitting of the sample of 130 GRBs with
the known redshifts.}
\par
\small
\begin{tabular}{lrrrrrrr}
              \hline \hline
Fit & I.   & II.  & III. &  IV. & V. & VI. & VII.   \\
No.~ of &     &      &      &    & & &    \\
bins & 10  & 11    & 12     &   15 & 16 & 17a & 17b     \\
\hline
1 G &   &     &      &   & & &   \\
$\chi_1^2$  & 9.7  & 12.2    & 13.9 &  11.8 & 14.8 & 16.8 & 11.9 \\
si.[\%]   & 20.9  & 14.4 & 12.6 &  46.0 &
31.8 &  26.5 & 61.2  \\
$\mu$     & 1.55  &  1.52  & 1.53     &  1.69 & 1.54 & 1.54 & 1.53
\\
$\sigma$ & 0.74     & 0.77  & 0.74    &  0.78 & 0.76 & 0.75 & 0.76 \\
\hline
2 G &   &     &      &     \\
$\chi_2^2$  & 2.6  & 6.7    &  7.7   &  4.7  & 7.9 & 10.1 & 5.3   \\
si.[\%]   & 62.4  & 24.0 & 26.0 & 86.0  &
64.0 & 51.8 & 91.8 \\
$\mu_1$     & 1.47  & -0.50   &  0.17    &  0.22 & 0.70 & -0.69 &
-0.66  \\
$\sigma_1$ & 0.77    & 1.00  &  0.88   &  0.94 & 0.86 & 0.10 & 0.15 \\
$\mu_2$     & 1.97  &  1.58   &  1.62    &  1.77 & 1.68 & 1.59 & 1.58
\\
$\sigma_2$ & 0.10  & 0.63  &  0.58   &  0.60 & 0.55 & 0.62 & 0.63
\\
$w_2$         & 0.12 & 0.97   & 0.91    &  0.91 & 0.82 & 0.97 &
0.97   \\
F[\%]         &  6.97    &  28.21  & 22.19  & {\bf 2.20} & 6.50 &
 9.74 & {\bf 1.70}\\
\hline
3 G &   &     &      &     \\
$\chi_3^2 $ & 2.0  &  2.0  &  1.9    &  2.2 & 4.0 & 5.4 & 2.8 \\
si.[\%]   & 15.4  & 49.8 & 59.1 & 89.9  &
77.8
& 71.4 & 94.8  \\
$\mu_1$     & 1.04  & --0.13    &  1.16   &  0.17  & 1.07 & --0.57 &
--0.12 \\
$\sigma_1$ & 0.30    & 1.00  &  1.05   &  0.50  & 0.92 & 0.05 & 0.14\\
$\mu_2$     & 1.17  &  0.94  &  1.61    &   1.14 & 1.32 & 1.12 & 0.95
\\
$\sigma_2$ & 1.10     & 0.26  &  0.25   & 0.26  & 0.12& 0.42 & 0.33 \\
$w_2$         & 0.25 & 0.24   & 0.53 &  0.24 &0.49 & 0.48 & 0.28   \\
$\mu_3$     & 1.94  &  1.85   &  1.91    &  2.00 & 1.88 & 2.00 & 1.86
\\
$\sigma_3$ & 0.34     & 0.44  & 0.18    &  0.43 & 0.33 & 0.34 & 0.43
\\
$w_3$         & 0.49     & 0.69   & 0.25     &  0.67  & 0.41 & 0.49 &
0.67
\\
F[\%]         & 89.64 & 24.41  & 10.51  & 13.29 & 12.66 & 11.40 &
10.96
\\
\hline \end{tabular} 
\end{table}