When selecting a specific number of builds, the pie chart shows data for all builds instead of the specified number of builds. Since there is no way to export data and have Skipped, Failed and Passed (only Failed and Passed get exported), there is now workaround therefore assigning the priority to Major.

As you can see in the following attachment, the line and bar char graph the data of the last 10 builds (with 0 skipped build), while the Pie chart contains skipped values and the title is Build details for all.