diff --git a/app/helpers/application_helper.rb b/app/helpers/application_helper.rb
index 760509a6..47d40698 100644
--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -40,7 +40,6 @@ module ApplicationHelper
     data[:cities].flatten!.uniq!
     data[:countries].flatten!.uniq!
 
-    # Group cities by country
     grouped_by_country = {}
     stats.select { _1.year == year }.each do |stat|
       stat.toponyms.flatten.each do |toponym|
@@ -58,10 +57,8 @@ module ApplicationHelper
       end
     end
 
-    # Deduplicate cities for each country
     grouped_by_country.transform_values!(&:uniq)
 
-    # Return data for the template to use
     {
       countries_count: data[:countries].count,
       cities_count: data[:cities].count,