https://macdailynews.com/2019/10/24/cirp-apples-new-iphone-11-pro-pro-max-accounted-for-20-of-u-s-iphone-sales-within-first-two-weeks-of-availability/
CIRP: Apple's new iPhone 11/Pro/Pro Max accounted for 20% of U.S. iPhone sales within first two weeks of availability