Ancestries of various US political figures

Here. On Dubya:

The ethnic/national ancestry of George Walker Bush (as far as is currently known) can be shown as:

       39.099 121 093 75  %     English
      25.585 937 5       %     Unknown (presumably English)
      12.109 375         %     German
      4.687 5           %     Unknown (presumably German)
      3.906 25          %     Unknown
      3.747 558 593 75  %     Welsh
      3.173 828 125     %     Irish
      2.075 195 312 5   %     French
      1.660 156 25      %     Scottish
      1.562 5           %     Italian
      0.781 25          %     Unknown (presumably Scottish)
      0.732 421 875     %     Dutch
      0.390 625         %     Moravian
      0.390 625         %     Unknown (presumably Swedish)
      0.048 828 125     %     Belgian
      0.048 828 125     %     Swedish
   ===================================================
    100.0               %