The language spread of Bulgarian in the United States according to U. S. Census 2000 and other resources interpreted by research archive copy at the Wayback Machine of U. S. ENGLISH Foundation archive copy at the Wayback Machine, percentage of home speakers.

• Colors computed by formula:
  =ROUND(((current_value/maximal_value)*(current_value/maximal_value)*255);0)
• Based on Image:Blank_US_Map.svg.

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