Does this conflate the number of new visas issued to new workers, with the existing visas renewed by already settled-in-US workers (that must be renewed every 3

Does this conflate the number of new visas issued to new workers, with the existing visas renewed by already settled-in-US workers (that must be renewed every 3 years)? Because due to the GC backlog, the existing visas do not go down for 2 major contributing countries.