I'm curious why Los Angeles has an increase in Bachelor degrees but a significant decrease in levels above and below. The article doesn't address that, only no

I'm curious why Los Angeles has an increase in Bachelor degrees but a significant decrease in levels above and below. The article doesn't address that, only noting: > [...] immigrants continue to flow into places like New York and Los Angeles. But these places are seeing a net loss of Americans of all education levels. > San Francisco, Los Angeles, Washington, D.C., and Miami all saw their ranks of educated residents grow and less educated residents shrink.