[Tex/LaTex] Adding double vertical line in one column

Question

I'm trying to add a vertical double line to the horizontal one using \hhline.
I want to add this double vertical line after column Year, before (a,b) in my table (the second line from the left). I want this new vertical double line to go from the top, down to the bottom of the table.

My code is:

  \begin{table}[h!]
  \begin{center}
  \begin{tabular}{|c|c|c|c|c|c|}
  \hline
  Year & a & c &e & g\\ 
  &b & d &   f &h \\ \hhline{|=|=|=|=|=|} 
  1995 & 423 & 1049.5 & 3.4 & 31.1 \\ \hline  
  1996 & 224 & 1009.9 & 3.2 & 31.0\\ \hline
  1997 & 209 & 1069.1* & 3.5 & 30.8\\ \hline
  1998 & 298 & 1270.9 & 4.0 & 31.9\\ \hline
  1999 & 322  & 1386.1 &4.2 & 32.9\\ \hline
  2000 & 507 & 1633.9 & 5.0&32.7 \\ \hline
  2001 & 472 & 1515.5 & 4.5&34.0\\ \hline
\end{tabular}
\end{center}

\end{table}

What do I do to improve it? I tried searching other threads but I couldn't get the solutions to work for me.

Answer 1

You don't need \hhline for this:

\begin{center}
 \begin{tabular}{|c||c|c|c|c|c|}
  \hline
  Year & a & c &e & g\\ 
  &b & d &   f &h \\ \hline\hline  % \hhline{|=|=|=|=|=|} 
  1995 & 423 & 1049.5 & 3.4 & 31.1\\ \hline  
  1996 & 224 & 1009.9 & 3.2 & 31.0\\ \hline
  1997 & 209 & \phantom{*}1069.1*& 3.5 & 30.8\\ \hline
  1998 & 298 & 1270.9 & 4.0 & 31.9\\ \hline
  1999 & 322 & 1386.1 & 4.2 & 32.9\\ \hline
  2000 & 507 & 1633.9 & 5.0 & 32.7\\ \hline
  2001 & 472 & 1515.5 & 4.5 & 34.0\\ \hline
 \end{tabular}
\end{center}