Indicates the type of the currency rate being used. This is relevant for currencies that have offshore rate that different from onshore rate.
0 = Regular - Default if not specified.
The notion of onshore and offshore rates does not apply.
1 = Offshore
Used to indicate that the rate specified is an offshore rate which differs from its onshore rate.
2 = Onshore
Used to indicate that the rate specified is an onshore rate which differs from its offshore rate.