Thanks wooster. You are the only person who actually answered my question. I guess this forum has a chance :)

I wonder if with the "graying" of baby boomers, the statistic is going to shoot up. I wouldn't be surprised if by 2020 the numbers would double, along with the projected retirement numbers. Of course, that would mean that the cluster areas would see rates close to 1 in 4 older adults, which would be truly scary!