When a suggested edit is approved, the user who suggested it gets +2 reputation. The regular daily reputation cap applies, and the total cap is 1,000. Like any other reputation, the +2 is deleted if the edited post is ever deleted.
So since your rep is below 2000, you get +2 for each suggested edit which is approved.
There is a hard limit of 1,000 reputation earned from approved suggested edits. After that, you can continue to suggest edits, but you won't earn any reputation for getting them approved.
Adding some very useful and obscure info verbatim from @damryfbfnetsi in the comments, there's one exception to the rule that you lose rep if you suggest an approved edit to a later-deleted post: if your suggested edit was to a tag wiki, and the tag is later burninated/manually removed, you get to keep the reputation (it will show up as editing an "orphan wiki")
