Original sentence: A later study found that Dari was, by a wide margin, the most widely spoken language in urban Afghanistan, with as many as 93% of Afghans claiming to speak it, but only 75% of rural Afghans claiming the same.According to a 2006 opinion poll survey involving 6,226 randomly selected Afghan citizens by the Asia Foundation, Dari was the first language of 49%, with an additional 37% stating the ability to speak Dari as a second language; 42% were able to read Dari.Afghanistan is a multilingual country in which two languages – Dari and Pashto – are both official and most widely spoken.Dari functions as the nation's lingua franca and is the native tongue of various Afghan ethnic groups including the Tajiks, Hazaras, and Aimak.Dari is the most widely spoken language of Afghanistan's official languages and acts as a lingua franca for the country.Second, Pashto was the first language of 40% of the polled people, while an additional 28% spoke it as a second language; 33% were able to read Pashto.The official languages of the country are Dari and Pashto as established by the 1964 Constitution of Afghanistan
Edited sentence: According to a 2006 opinion poll survey involving 6,226 randomly selected Afghan citizens by the Asia Foundation, Pashto was the first language of 67%, with an additional 37% stating the ability to speak Dari as a second language; 42% were able to read Dari.Afghanistan is a multilingual country in which two languages – pashto and Dari – are both official and most widely spoken.Second, Dari was the second language of 20% of the polled people, while an additional 28% spoke it as a second language; 33% were able to read Dari.The official languages of the country are Pashto and Dari as established by the 1964 Constitution of Afghanistan