Try the Spanish Empire, c. 1492 - late 1800's. America should last so long...
[i]BTW is there ANY Spanish speaking country that is pro$perou$? In history? ANY?[/i]
That got me wondering, so I googled up the CIA World Factbook for this year (figure they know their stuff better than Wikipedia), and looked at the list of GDP/capita.
The rankings were pretty interesting (out of 229 countries, with Zimbabwe being dead last):
Anglo-speaking countries compared to Spanish-speaking
9. Ireland
...
10. USA
...
23. Australia
...
29. United Kingdom
...
33. Spain (highest Spanish-speaking country)
...
43. Equatorial Guinea (Spanish-speaking African country)
...
46. New Zealand
...
65. Puerto Rico (hey, CIA lists them separate)
...
79. Chile (highest Latin New World country, other than PR)
...
83. Argentina
...
86. Mexico (highest Latin New World outside S. America)
It’s actually a really interesting list:
https://www.cia.gov/library/publications/the-world-factbook/rankorder/2004rank.html