begin{document}
begin{landscape}

begin{table}[htbp]
  centering
  caption{Add caption}
    begin{tabular}{c|clSllllll}
    toprule
    multicolumn{1}{c}{multirow{2}[2]{*}{Variable}} & multirow{2}[2]{*}{Model} & multicolumn{2}{c}{multirow{2}[2]{*}{Estimated Parameters}} & multicolumn{6}{c}{multirow{2}[2]{*}{Details}} \
    multicolumn{1}{c}{} &       & multicolumn{2}{c}{} & multicolumn{6}{c}{} \
    midrule
          &       &       &       &       &       &       &       &       &  \
    multirow{5}[0]{*}{A} & multirow{5}[0]{*}{AR(5)} & diff At-1  & 0.052 & multicolumn{6}{l}{multirow{5}[0]{*}{AR(5) in diff A with lag order 5, p determined by BIC}} \
          &       & diff At-2  & 0.158 & multicolumn{6}{l}{} \
          &       & diff At-3  & 0.117 & multicolumn{6}{l}{} \
          &       & diff At-4  & 0.135 & multicolumn{6}{l}{} \
          &       & diff At-5  & 0.262 & multicolumn{6}{l}{} \
          &       &       &       &       &       &       &       &       &  \
    multirow{2}[0]{*}{A,B} & multirow{2}[0]{*}{VAR(1)} & diff At-1 & 0.239 & multicolumn{6}{l}{multirow{2}[0]{*}{VAR(1) in diff A and diff B with lag order 1 determined by BIC}} \
          &       & diff Bt-1 & 0.003 & multicolumn{6}{l}{} \
          &       &       &       &       &       &       &       &       &  \
    multirow{4}[0]{*}{A,C} & multirow{4}[0]{*}{VAR(2)} & diff At-1 & 0.140 & multicolumn{6}{l}{multirow{4}[0]{*}{VAR(2) in diff A and diff C with lag order 2 determined by BIC}} \
          &       & diff Ct-1 & 0.005 & multicolumn{6}{l}{} \
          &       & diff At-2 & 0.280 & multicolumn{6}{l}{} \
          &       & diff C2t-2 & 0.004 & multicolumn{6}{l}{} \
          &       &       &       &       &       &       &       &       &  \
    multirow{3}[0]{*}{A,B,C} & multirow{3}[0]{*}{VAR(1)} & diff At-1 & 0.239 & multicolumn{6}{l}{multirow{3}[0]{*}{VAR(1) in diff A, diff B and diff C with lag order 1 determined by BIC}} \
          &       & diff Bt-1 & 0.003 & multicolumn{6}{l}{} \
          &       & diff Ct-1 & 0.002 & multicolumn{6}{l}{} \
          &       &       &       &       &       &       &       &       &  \
    multirow{4}[0]{*}{A,D} & multirow{4}[0]{*}{VAR(2)} & diff At-1 & 0.167 & multicolumn{6}{l}{multirow{4}[0]{*}{VAR(2) in diff A and diff D with lag order 2 determined by BIC}} \
          &       & diff Dt-1 & 0.041 & multicolumn{6}{l}{} \
          &       & diff At-2 & 0.276 & multicolumn{6}{l}{} \
          &       & diff Dt-2 & 0.026 & multicolumn{6}{l}{} \
          &       &       &       &       &       &       &       &       &  \
    multirow{6}[0]{*}{A,E} & multirow{6}[0]{*}{VAR(3)} & diff At-1 & 0.094 & multicolumn{6}{l}{multirow{6}[0]{*}{VAR(3) in diff A and diff E with lag order 3 determined by BIC}} \
          &       & diff Et-1 & -0.009 & multicolumn{6}{l}{} \
          &       & diff At-2 & 0.246 & multicolumn{6}{l}{} \
          &       & diff Et-2 & -0.136 & multicolumn{6}{l}{} \
          &       & diff At-3 & 0.220 & multicolumn{6}{l}{} \
          &       & diff Et-3 & 0.145 & multicolumn{6}{l}{} \
          &       &       &       &       &       &       &       &       &  \
    multirow{4}[1]{*}{A,F} & multirow{4}[1]{*}{VAR(2)} & diff At-1 & 0.151 & multicolumn{6}{l}{multirow{4}[1]{*}{VAR(2) in diff A and diff F with lag oder 2 determined by BIC}} \
          &       & diff Ft-1 & -0.163 & multicolumn{6}{l}{} \
          &       & diff At-2 & 0.291 & multicolumn{6}{l}{} \
          &       & diff Ft-2 & 0.082 & multicolumn{6}{l}{} \
    bottomrule
    end{tabular}%
  label{tab:addlabel}%
end{table}%

end{landscape}
end{document}