No, I said that the big wave of migration was in the late 40's to the end of the 60's. From then on, until the economy crashed due to Congress' failure to renew Section 936 in 1996. At that point, all the American factories and laboratories began slowly closing, and by around 2010 unemployment had increased and many began moving to the mainland. The hurricane accelerated this, with mostly middle class folks like doctors and accountants and engineers began moving to places like Orlando, Atlanta, Charlotte rather than the Northeast as they had 70 years ago.
Now, there are more than 600,000 fewer people in Puerto Rico than there were just a decade ago.
The biggest difference, though, is that many of those migrants grew up in Puerto Rico listening to stations that played a lot... or all... music in English. And many went to bilingual private schools (almost all middle and upper income families send their kids to private or religious schools) so they are not locked into Spanish language music or stations.
Oh, and the first wave assimilated rapidly as back then there was extreme pressure to learn English and many places prohibited the use of Spanish on the job, in schools and elsewhere.
(For those reading this that don't know, all Puerto Ricans are born US citizens and they migrate, not immigrate)
