Did some digging for ya James. I actually contacted a friend of mine John, living in the north Okanagan, who has had one of the "last issue' group of 50 Canadian delivery bikes for at least 15+ years.  This is from him:

World  Production numbers 780
John

Alan Greenslade Location: East Haddam, CT
Re: Production numbers, 200 Quota 1100ES
« Reply #9 on: April 13, 2021, 11:42:52 AM »
n »new«
   " 1100 ES (enduro stradale) few changes were done comparing the bike with old 1000 model. Engine was re-tuned, seat height was lower, front disc's diameter was bigger, front headlight fairing were redesigned with so called cat's eye headlight.
   There are different data's when the bike production was stopped from 1999 to 2001. One of versions is that in Guzzi factory an order from Australia was expected. It never came to it and production was stopped in 1999 (factory talks). Last Quotas were exported in Canada in 2001 and they have 45 mm Marzocchi adjustable forks. 50 were sent there, 100 in States, about 35 are in Italy, 15- 20 in Netherlands, 207 in Germay in Slovenia they are 5 in Great Britain 6 in New Zeland 2. I dont have data for other countrys. According to factory info. 780 ES models were produced."
 Apparently  there is a long discussion about Quota production on the ADV motorcycle forum.