Ecuador Strikemasters

Hello there,

I am currently researching the BAC Strikemaster aircraft that served with the Ecuadorian Air Force.
Can anyone suggest how many aeroplanes are still in service today?
I have found a document on the Internet suggesting 10 are still in use, but I am not 100% how accurate the data is.

Any help is greatly received 🙂
Thanks for your time.

Mark