Whats average life for your water pump gasket, 200, 700, 900?

Earlier post I wrote, "Then to yet another water pump mushroom gasket." Average for me seems to be 5-6 years more or less. It sure seems like less. This had no oil leaking on it but I cannot say its true for the other cars.

The 240 had a leak and the car had to set a while. The alternator bushings were so worn out the metal block on the alternator adjusting screw started to rub against the harmonic balancer. I decided to park it for a while until I got a round tuit. The dripping coolant dripped onto the adjusting screw and froze it. I got some wiggle on the screw after a few months of PB Blaster but I broke it, the first one. The remaining end came right out.

I will now use anti-seize on the adjusting screws whether they are under the WP or not.

Tom

EDIT: I spoke too soon. I had this car since ~2007 and had not changed the WP gasket since therefore it has been 7+ years.