Showing subtotals in cross table columns
If the vertical axis in a cross table is structured hierarchically, it is possible to show subtotals within the cross table columns. A subtotal is by default calculated using the expression that is used for calculating the cell values.
If the hierarchy on the vertical axis has more than two levels, you can specify on which levels subtotals should be displayed.
Subtotals are not based on the aggregated values shown in the cross table cells; they are by default based on the underlying data table rows. For example, if 'Average' is used as aggregation method, the subtotal average of a column takes into account all the data rows on which the cell values are based, and not only the averages shown in the cross table cells. See Displaying totals.