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Cumulative line charts show the cumulative total by value. These can be useful for tracking completion dates, height-weight curves, or [Van Westendorp price curves](/charts/van-westendorp-price-sensitivity-meter): <img src="/uploads/upload/image/5200/direct/1571278847500-1571278847500.png" style="width: 394px;" class="fr-fic fr-dib"> To create one, press the edit icon and select "Chart type..." from the menu to bring up the chart dialog, then select "cumul": <img src="/uploads/upload/image/5200/direct/1571278994225-1571278994225.png" style="width: 360px;" class="fr-fic fr-dib"> Cumulative line charts can also be cross-tabbed, in this case showing no real difference in completion date by year of graduation: <img src="/uploads/upload/image/5200/direct/1571279968450-1571279968450.png" style="width: 429px;" class="fr-fic fr-dib">
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