Possible enumeration values:
| Name | Value | Description | 
|---|---|---|
| All | 
                     0  | 
                |
| Unpaid | 
                     1  | 
                |
| PartiallyPaid | 
                     2  | 
                |
| UnpaidAndPartiallyPaid | 
                     3  | 
                |
| PaidInFull | 
                     4  |