for item in all_items:
            user_info = item["user_specific"]
            if user_info is "NULL" or user_info is None:
                continue
            meaning_correct = int(user_info["meaning_correct"])
            meaning_incorrect = int(user_info["meaning_incorrect"])
            reading_correct = int(user_info["reading_correct"])
            reading_incorrect = int(user_info["reading_incorrect"])

            item_correct = min(meaning_correct, reading_correct)
            item_incorrect = max(meaning_incorrect, reading_incorrect)

            total_correct += item_correct
            total_incorrect += item_incorrect

            total_reviews = total_correct + total_incorrect