Hello and welcome!
Please have a look here http://fmjd.org/?p=annex
to the Annex 9 . There you will find an explanation how the FMJD rating system works.
And here you will find the result of work of this system:http://fmjd.org/?p=rat
By the way. In 2003 we received information from the draughts federation of Jamaica even with statutes anf the list of officers. The federation wanted to affiliate with the FMJD. But afterwards there were no contacts. I mailed to the contact person but never got an answer. If you like please write me to firstname.lastname@example.org