EB2 green card visa wait times: only China and India (for now)
EB3 green card wait times: Mexico, Phillipines and other countries
I think most folks may not realized that there are a variety of green card paths, even within the employment category, and the requirements for EB1, EB2 and EB3 are completely different.
Unless they have an advanced degree (I believe a PhD, or at the very least a Masters), foreign workers, even highly paid silicon valley software engineers fall under the EB-3 category, which has a further backlog than that. I have friends with Filipino passports working at Google/MS/etc for 4+ years and still waiting on movement on their green card applications.
I stand corrected! Wow! I used to check the State Department's visa bulletin all the time when I was waiting for my green card. Back then China and India were the only countries with backlogs.
Looking at the current bulletin.[1] It now looks like China, India, El Salvador, Guatemala, Honduras, Mexico and the Philippines all have some backlog for EB-3.
Yikes! However, Mexico, El Salvador, Guatemala and Honduras only have a ~4 month backlog.
Only India have China have significant employment based immigrant queues. Some of the other countries you mentioned are severely backlogged in the family based categories.