Export data?

If you want to export your list of followers, you can do so thanks to the download link at the bottom of your list of subscribers. You can get to that list by following the instructions here:
https://jetpack.me/support/subscriptions/#view-your-email-subscribers

If you’d like to export your stats, you can use the WordPress.com Stats API to download the information you need:
https://stats.wordpress.com/csv.php
https://phoxis.org/2011/04/24/wordpress-com-stats-api/

Other than that, I can’t think of any other data that we store that is not already stored on your site.

I hope this helps.

The Stats API is exactly what I need, thank you!