Lawnmower Question...

So I have a 2008 model Troy Bilt 42" cut rider. The deck height is controlled with the typical handle next to the seat and has a cable attached to the deck that raises and lowers the deck to correspond with where the handle is. My question is are these cables prone to stretch over time? I just recently leveled the deck and sharpened the blades for the season's end and it seems like I do not have much height adjustment left on the deck. The cable is in good physical condition with no frays or broken spots.