All of them release numbers on this: https://www.apple.com/legal/transparency/ https://www.apple.com/legal/transparency/ https://transparencyreport.google.com

All of them release numbers on this: https://www.apple.com/legal/transparency/ https://www.apple.com/legal/transparency/ https://transparencyreport.google.com/user-data/overview?hl=en https://transparencyreport.google.com/user-data/overview?hl=... https://www.microsoft.com/en-us/corporate-responsibility/law-enforcement-requests-report https://www.microsoft.com/en-us/corporate-responsibility/law... https://transparency.fb.com/data/government-data-requests https://transparency.fb.com/data/government-data-requests