have a look at the cyanatable script, distributed with cyana it gives a table of noe stats.

other options: have a look at the peak file *-final.peaks files and see if you can extract 'assignedness' from that. same for manually assigned peaks.

for the assigned peaks there will be atom number towards the end of each peak line, unassigned peaks will have zeros

a simple awk script should be enough to extract all the numbers you want.

goodluck, Eiso