I may be misremembering, then. I had seen different numbers than that. It may also be that what I'm remembering is a comparison from farther back that explains that the pensions of 30 years ago were a brief blip and that what's going on now is we're reverting to the long term mean. Or I'm entirely wrong, which there is a lot of precedent for.
Best I could find was [1]. 60% of private sector workers covered in 1980 vs. 10% in 2006. Seems to me the reputation is appropriate.
[1]: https://economix.blogs.nytimes.com/2009/09/03/pensions-1980-...