Top Countries with the Longest Total Duration for Lernerfolg Grundschule: Deutsch - Der Rechtschreibtrainer from Review Channels

This list represents countries of YouTube review channels based on the longest total video duration across all videos for Lernerfolg Grundschule: Deutsch - Der Rechtschreibtrainer. This only includes channels that have created review videos. A channel associated with a country will have its numbers added to their country's total. Numbers are retrieved via the YouTube API and updated daily.