Around the 10% of Turkish Republic was member of the organization between 1990 and 2025. The percentage of members outside Turkey was 0.1% of their own size. At the moment it became a terrorist organization in Turkey in 2016, the size was around the 8.5 million. Not every member is arrested until today.
Imagine like it was powerful like a small country, like Armenia or Georgia. After and before the military coup attempt it was like a war in Turkey and even outside the Turkish borders.