documentclass{amsart}

usepackage{mathtools,array}
usepackage{makecell}


begin{document}


begin{center}{bfseries{Average Number of Video}}end{center}
begin{center}{bfseries{Rentals Per Premium Member}}end{center}
begin{center}{bfseries{at Store textit{B}}}end{center}
smallskip

noindent hspace*{fill}
begin{tabular}{|| c !{vrule width0.8pt} c | c | c||} hline
    Year                &   1985    &   1986    &   1987 \ Xhline{0.8pt}
    Rentals             &   12      &   15      &   20 \ hline
end{tabular}
hspace{fill}


end{document}