In short, there is no product defined limit to the growth of DB rows that can be inserted to underlying CA Risk Authentication table (ARRFADDONRULELISTDATA) that holds the "Other Lists" data. The space has to be planned with your DBA given max row size discussed below and your max requirements in the long run.
The ARRFADDONRULELISTDATA table is not a table that is recommended for DB trimming / Pruning as is the case for audit log tables. So you need to plan for it in terms of DB size allocation.
Here is a detailed answer to your query about the related table and its columns / max row size.
The columns in this table are given below with their max sizes. Note the only column is "Data" which can be 1 to a max of 512 bytes. Hence a row can of 540 bytes max length.
1. VERSIONNUMBER ==== Fixed 4 byte Integer
2. DATA ==== Variable 512 bytes (max length)
3. DATECREATED ==== Fixed 8 bytes
4. ADDONRULELISTDATA_ID ==== Fixed 16 bytes (Primary Key)
Here is a Length specific allocation by columns.
1. VERSIONNUMBER (4 bytes)
3. DATECREATED (8 bytes)
4. ADDONRULELISTDATA_ID (16 bytes)