In September 2006 the number of such prisoners was 51.
But in 1989 the number of prisoners increased 1,600, to 13,437.
It says the number of political prisoners now appears to be at least 600.
"The only place we are winning is the number of prisoners."
There are a small number of political prisoners still in prison.
The Union was not prepared for this number of prisoners.
The total number of prisoners is estimated to have been between 2,500 and 5,000.
On the one hand, it has released a number of political prisoners.
The large number of prisoners, however, caused them some trouble.
He estimated the number of prisoners at more than 10,000.