
#table(
    rows: 6,
    columns: 5,
    column-gutter: 0.25em,
    align: (left, center, center, center, center),
    stroke: none,
    table.header(
        table.hline(y: 0, stroke: 1pt),
        [],
        table.cell(colspan: 4)[*group2*],
        table.hline(y: 1, start: 1, end: 5, stroke: 0.75pt),
        [],
        table.cell(colspan: 2)[e],
        table.cell(colspan: 2)[f],
        [],
        table.cell(colspan: 2)[*group3*],
        table.hline(y: 3, start: 1, end: 3, stroke: 0.75pt),
        table.cell(colspan: 2)[*group3*],
        table.hline(y: 3, start: 3, end: 5, stroke: 0.75pt),
        [*group1*],
        [c],
        [d],
        [c],
        [d],
        table.hline(y: 4, stroke: 0.75pt),
    ),
    [a],
    [1],
    [3],
    [2],
    [4],
    [b],
    [5],
    [7],
    [6],
    [8],
    table.hline(y: 6, stroke: 1pt),
)
