X_PERIOD_BASIS is a [fixed lexicon] with the following values:\\

%%zebra-table
||Saved\\Value||Displayed Value
| 01          | Year(s)
| 02          | Month(s)
| 03          | Semi-Monthly
| 04          | Bi-Weekly
| 05          | Week(s)
| 06          | Day(s)
| 07          | Hour(s)
| 08          | Unit(s)
%%