Different expiration times for terms-of-use storage records

[shibboleth655 at lewenberg.com]

Records created by the terms-of-use intercept are stored in our backend 
storage in the table StorageRecords. These records have their "expires" 
field set to one year. According to the documentation this expires 
duration can be changed by setting idp.consent.storageRecordLifetime to 
a different value.

Can the expiration of different relying party's terms-of-use records be 
set to different values? For example, is it possible to have 
terms-of-use records for relying party A have their expiration set to 
one year, while the terms-of-use records for relying party B have their 
expiration set to three years?

Or must all terms-of-use records get their expires field set to the same 
value (idp.consent.storageRecordLifetime)?

Thanks, Adam Lewenberg