Iranica also estimated 25% of Afghanistan natively speaking Dari but also categorized varieties of Persian spoken in central Afghanistan as different languages as Dari, and gave no estimates to the percentage of non-Dari Persian speakers. Iranica also made no reference to how many ethnic Pashtuns spoke Dari as their first language.
Iranica's estimations about Dari usage in Afghanistan were based on a 25% figure, but they categorized different varieties of Persian spoken in central Afghanistan as separate languages and did not provide any data for non-Dari Persian speakers.  Furthermore, Iranica made no mention of the number of Pashtuns who spoke Dari as their first language.