You can find your agreement of service on the terms of service.
Enterprise customers can custom their data retention policy to ensure they fit their business needs.
Here the part of it.
Data Retention Policy:
Every data stored in your account are encrypted for your safety and stored on highly secure infrastructure across the world. We store your data until you decide to delete your account by requesting; You can export data at any time in your Account Settings. If you want the most recent export file with the latest entry, you should wait at least five to fifteen minutes to have the latest Excel document. This is due because every new data need to be processed. When a new entry (new information are captured) is available to process.