\begin{table}%ta1
\caption{\label{taba1}Distribution of accumulated helicity and tilt angle
evolution in the northern hemisphere.}
\par
%\centerline
{\small
\begin{tabular}{lllllll}
\hline
\hline\noalign{\smallskip}
      Type &      NOAA  & $\textrm{Helicity sign}^{a}$ &  $\textrm{Helicity}^{b}$  & $\textrm{Rotation}^{c}$  &  $\Delta \textrm{Ta}^{d}$  &  $\textrm{Joy's law}^{e}$ \\
\hline
           &       8164 &          $-$ &      $-$7.85 &          $-$ &      $-$55.8 &          F \\
           &      10045 &          $-$ &      $-$20.5 &          $-$ &      $-$45.8 &          F \\
           &      10227 &          $-$ &      $-$10.3 &          $-$ &        $-$25 &          F \\
           &      10232 &          $-$ &     $-$0.383 &          $-$ &      $-$22.5 &          F \\
           &       8117 &          $-$ &      $-$0.49 &          $-$ &      $-$9.58 &          T \\
           &       8843 &          $-$ &      $-$1.47 &          $-$ &      $-$45.9 &          T \\
           &       9728 &          $-$ &      $-$3.37 &          $-$ &      $-$37.7 &          T \\
           &       9931 &          $-$ &      $-$27.5 &          $-$ &      $-$36.1 &          T \\
         A &      10268 &          $-$ &      $-$13.8 &          $-$ &        $-$33 &          T \\
           &      10385 &          $-$ &      $-$3.84 &          $-$ &      $-$10.0 &          T \\
           &      10461 &          $-$ &      $-$6.87 &          $-$ &      $-$18.3 &          T \\
           &      10838 &          $-$ &      $-$4.24 &          $-$ &     $-$13.57 &          T \\
           &      10879 &          $-$ &      $-$4.75 &          $-$ &      $-$55.1 &          T \\
           &       8116 &          + &       8.69 &          + &       36.9 &          F \\
           &       9495 &          + &       6.17 &          + &       7.93 &          F \\
           &      10132 &          + &       73.0 &          + &         35 &          F \\
           &      10839 &          + &       1.42 &          + &       37.1 &          F \\
           &       9144 &          + &       49.5 &          + &       67.2 &          T \\
           &      10480 &          + &       0.16 &          + &       12.5 &          T \\
\hline
           &      10646 &          $-$ &      $-$15.0 &          + &       66.9 &          F \\
           &       8052 &          + &       9.93 &          $-$ &      $-$15.0 &          F \\
           &      10214 &          + &       12.3 &          $-$ &      $-$20.7 &          F \\
         B &       8722 &          + &       2.73 &          $-$ &      $-$25.0 &          T \\
           &       8123 &          + &       16.0 &          $-$ &      $-$32.5 &          T \\
           &       9063 &          + &       24.5 &          $-$ &       $-$0.8 &          T \\
\hline
\end{tabular}}
\par
\medskip
$^a$~The sign + ($-$) in the helicity column represents positive (negative) helicity.
$^b$~The unit of helicity is $10^{41}Mx^2$.
$^c$~The sign -- (+) in the rotation direction column represents the active region rotating clockwise (counter-clockwise).
$^d$~The unit of $\Delta Ta$ is degree.
$^e$~T (F) shows that the active region satisfies (disobeys) Joy's law.
\end{table}