lifespan of a laser

[woo124]

Under normal use with mod chip (backups), roughly how long does a laser last? I guess it depends on the version of PS2 as well. Ideally, I'd like know how it would be with vo with DMS3, but I doubt ANYBODY has such data.
:-) So, Anybody has any info on ball park figure for this kind of data with any versions of ps2, could you please kindly share it with me? Just let me know how long your laser lasted after using a mod chip and back ups, or how long you've been using it( if it's still running good)

Thanks