\begin{table}[ht]
\begingroup
\definecolor{altrow}{gray}{0.93}
\centering
\setlength\tabcolsep{1pt}

    \begin{tabular}{l|p{0.5\textwidth}|cccc|cccc|cccc|cccc|cccc}
    \toprule
    & Task &\multicolumn{4}{c|}{Year 1} & \multicolumn{4}{c|}{Year 2} & \multicolumn{4}{c|}{Year 3} &\multicolumn{4}{c|}{Year 4} & \multicolumn{4}{c}{Year 5}\\
    \midrule
    \arrayrulecolor{lightgray}
    \input{input/timeline.tex}
    \arrayrulecolor{black}
    \bottomrule
    \end{tabular}

\vspace{-0.1in}
\caption{\textit{Timeline for the proposed work. Each \timelinec\xspace represents a quarter of a year.}}
\vspace{-0.2in}
\label{tab:timeline}
\endgroup
\end{table}
