Drastic?, no. It changes on occasion, but there have been no drastic changes. In Sosua, rate for the dollar is 17.80 at the exchange banks, that is up .10 compared with about 10 days ago. the EURO rate is 17.10 (mostly) but 17.20 can be found at one or 2. This is down .10/.20 compared with about 10 days ago.
Figures I am quoting were the posted figures as of 1pm today.