* Definition of "Arabic country": There's no universally agreed-upon list of what constitutes an "Arabic country." Some countries are majority Arabic speaking, but have significant minorities who speak other languages. Others may have Arabic as an official language but have a large portion of the population speaking other languages as their first language.
* Variations within countries: Even within a single country, there can be significant regional differences in Arabic fluency.
* Data availability: Accurate data on language use isn't always available for all countries.
However, we can make some general statements:
* Majority Arabic speaking: The majority of the population in most countries in the Arab world speaks Arabic as their first language.
* Significant minorities: Many of these countries also have significant minority populations who speak languages other than Arabic, such as Berber, Kurdish, Amazigh, or other languages.
* Official language: Arabic is the official language in most countries in the Arab world. This doesn't necessarily mean everyone speaks it fluently or as a first language.
To get a more accurate idea, you would need to look at individual countries and their specific demographics.
It's important to remember that language is a complex and nuanced issue, and generalizations can be misleading.