A complete tally of info Apple has collected about you is a simple web form away.
If you'd like to get a copy of your own data record from Apple, here's how to get the ball rolling:
• Start by going to Apple's Privacy Questions page, here: https://www.apple.com/privacy/contact/
• From the single pulldown menu on this page: "I have a question about," select "Privacy Issues."
• Fill out the resulting form, including your name, email and location.
• Add a sentence or two requesting all your data, for example: "I'd like a copy of all the data Apple has on me."
The data delivered includes all App Store and iTunes purchases connected to your Apple ID, serial numbers of all your Apple devices, and even a list of songs you've used with iTunes Match.